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Medical Analogies

"Metaphors have a way of holding the most truth in the least space." — Orson Scott Card
Knowledge not found elsewhere For Trainees, Trainers & TPDs High-impact learning in minutes
A living database of 180+ analogies across 18 body systems — organised, simplified, and ready to use in your next consultation. Because sometimes the best explanation is not the medical one.
Last updated: April 2026

🌐 Web Resources

A hand-picked mix of official guidance and real-world GP resources. Because the best teaching pearls are rarely in the official documents.
Academic
Medical Analogies — Paul Thagard
The academic foundation for analogical reasoning in medicine.
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Community
Reddit: Best Analogies in Medical Training
Doctors sharing favourites — a goldmine of creative explanations.
Browse →
Clinical
Clinical Advisor: Analogies & Compliance
How analogies tackle medication non-compliance in primary care.
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Teaching
The Synectic Model — John Dabell
The educational theory behind analogy-based teaching.
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Etymology
Medymology
Where medical words come from — great for richer explanations.
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Health Literacy
Health Literacy — NHS England
Why plain language and analogies matter for patient safety.
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SCA Prep
RCGP SCA: Explanation Domain
Where analogies score marks in the SCA — directly assessed.
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Pain Science
Pain Revolution — Explain Pain
Resources from the Explain Pain movement — brilliant for pain analogies.
Visit →
GP Training
Bradford VTS: Communication Skills Hub
The full Bradford VTS communication library — analogies in context.
Browse →
Mental Health
RCPSYCH: Explaining Mental Health to Patients
Royal College guidance on communicating mental health diagnoses accessibly.
Browse →
Patient Info
Patient.info — Patient Leaflets
See how professionals pitch explanations for lay audiences.
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Communication
RCGP: Communication Skills in GP
Consultation skills guidance — where analogies sit in GP practice.
Read →

⚡ Quick Summary

If you only read one section — make it this one.
1
An analogy explains the unfamiliar by comparing it to something the patient already knows.
2
It works when the similarity is genuine. If you have to stretch it, it won't land.
3
Always check understanding afterwards. The patient's "aha" is the goal — not saying the analogy.
4
Use the LASER framework: Link → Analogise → Stay Simple → Explain → Reflect Back.
5
Know when NOT to use one — high emotion, cultural mismatch, or a technically misleading comparison.
6
In the SCA, using an analogy and checking understanding scores marks in the explanation domain.
7
OA: "wear and repair" — not "wear and tear." One word change, large psychological difference.
8
The best analogy is the one you adapt for the patient in front of you. Make it yours. Make it theirs.

🗄️ Mehay's Medical Analogies Database

180+ analogies across 18 body systems. Click a system to open it, then click a condition to read. 👥 = contributed by readers. = new entry. Every analogy has been simplified and tightened. Adapt them freely — the best version is always the one that suits the patient in front of you.

🗂️ Miscellaneous

12 conditions
"God Will Heal Me" — Resisting Medical Help
  • I'm so impressed by your faith — and I'd like to share a short story, and then hear what you think.

    A village was flooded. A police car came to evacuate a man, but he refused: "God will help me." Later, surrounded by rising water, a boat came. Same answer. Finally, stranded on the roof, a helicopter arrived. He turned it away again. He drowned. In heaven, he asked God: "I had such faith — why didn't you save me?" God replied: "I sent a police car, a boat, and a helicopter. What more did you want?"

    I share that story because many people believe God works through people too — including doctors. What are your thoughts having heard that?
Diet & Weight
  • Your body is like a bank account — it stores excess food as fat instead of money. To lose weight, you need to spend more than you save: reduce intake so the body has to dip into its reserves.
  • If you were teaching someone to ride a bike and they kept falling off, would you tell them to give up? We all fall off a few times. Each attempt teaches you something.
Explaining Risk
  • Risk is like a weather forecast. A 20% chance of rain doesn't mean it definitely will rain — it means that if this day happened 100 times over, about 20 would be wet. You can't know which one you'll have. But you can decide whether to carry an umbrella.
Fatigue (Post-Viral)
  • Your body did a brilliant job fighting that virus — but it used up all its energy reserves to do it. It needs time to restock. Think of it like a phone that's been running flat out — it needs a proper full charge, not just a quick top-up.
  • Just because the virus has gone doesn't mean the damage is instantly fixed — like a knife wound that heals after the knife is removed, but still takes time to close. Rest is the treatment.
Insomnia 👥
  • I would like to give you some advice that i think will help you with your sleep. But to do that, let me you compare going to bed to sleep with going to the toilet to poo. So, you go to bed to sleep — just like you go to the toilet to, well, go. But when you're on the toilet and nothing's happening, you don't just sit there indefinitely. You pull your pants up and come back when you're ready. Sleep is the same. When you've woken in the night and can't drift off, don't lie there hoping. Get up, watch something gentle, like a nature or animal program, have a warm drink. Go back when you feel sleepy. Your bed should feel like a welcome invitation — not a wrestling ring.
Medication Compliance
  • Taking medication regularly is like watering a garden. Don't wait until the plants are wilting. Water them every day — before they need it.
Multiple Medical Problems
  • You've come in with what I call a medical tray — multiple problems stacked up. We can't clear the whole tray today, and that's okay. The goal is to make it lighter, one thing at a time. What's the one problem that, if we tackled it, would make the biggest difference to your day-to-day life?
Pain (General)
  • Pain is like a radio dial cranked up too loud — everything is too noisy. We can't always turn it off completely, but we can turn it down to a comfortable listening level. That's our goal.
  • In persistent pain, the brain gets flooded with too many pain signals — like a top boss overwhelmed by every vice president reporting trivial matters all at once. They end up overloaded, anxious, and scanning for more. We need to calm those signals and retune the brain.
  • Your sensory system is an alarm. Right now it's too sensitive. We need to recalibrate it — not remove it.
  • Your brain is like an orchestra that's got stuck playing the same tune — the pain tune. We need to help it learn other tunes again.
Preventive Care
  • Looking after your health is like maintaining a car. You don't wait for the engine to blow before you change the oil.
Sleeping Tablet Request
  • Sleeping tablets are like a plaster on a boil — they cover the surface but don't treat what's underneath. We need to work out what's causing the problem, not just paper over it. Does that make sense?
Smoking Cessation
  • If you were teaching someone to ride a bike and they kept falling off, would you tell them to give up? We all fall off a few times before we get it. Each attempt gets you closer. What's helped before — and what got in the way?
Your Life, Your Goals
  • Life is like a car journey. The driver decides where to go — the passenger just gets taken along for the ride. Are you being the driver in your life right now, or the passenger?

❤️ Cardiovascular

17 conditions
Aneurysm
  • An aneurysm is like a bulge in a hosepipe — the bigger it gets, the weaker the wall, and the higher the risk it bursts.
  • Like a bulge on a worn tyre — if the wall gives way, it blows out. That's why we keep such a close eye on the size.
Angina
  • Angina is like a muscle cramp — except in the heart. The heart muscle isn't getting enough blood during exertion, so it cramps up and hurts. It's a warning sign, not an emergency — but one that needs attention and treatment.
Unstable AnginaIf symptoms become more frequent, more severe, or happen at rest — that's unstable angina and needs urgent assessment.
Angioplasty / Stent
  • Angioplasty is like using a balloon to push open a narrowed pipe. A tiny balloon is threaded in and inflated. Sometimes a small mesh stent is left behind — like scaffolding — to keep the vessel open permanently.
Arrhythmia / AF
  • Your heart has its own built-in conductor — a natural pacemaker that keeps the rhythm. In arrhythmia, the conductor loses the beat. The orchestra plays out of time — too fast, too slow, or irregular. The medications help the conductor regain control.
Cholesterol / Atherosclerosis
  • Cholesterol slowly builds up on artery walls like limescale inside a pipe — silently narrowing the flow. Little pimples of cholesterol form on the walls. Most are stable and do nothing. But some can pop — triggering a clot that can cause a heart attack or stroke.
  • Think of it like a silently growing volcano. Most are stable. But occasionally one erupts — and the damage is sudden and severe. The hard part is that you can't tell from the outside which ones are dangerous.
Note on lifestyleReducing inflammation — through not smoking, regular exercise, stress management, and a Mediterranean diet — helps stabilise those pimples and reduce the risk of them popping.
Congenital Heart Disease
  • Congenital heart disease is like receiving a pump from the manufacturer with a fault already built in — something wasn't wired or plumbed correctly from the start.
DVT (Deep Vein Thrombosis)
  • A DVT is a blood clot in a leg vein — like a traffic jam in one lane. Blood backs up behind it, causing swelling, warmth, and pain. The danger is if part of the clot breaks off and travels to the lung — that's a pulmonary embolism, which is potentially life-threatening.
Heart (Structure)
  • Your heart is like a small house with four rooms — each with its own walls, doors (valves), electrical wiring, and plumbing.
Heart Failure
  • Heart failure doesn't mean your heart has stopped — just that it's not pumping as well as it used to. Think of it like a water pump getting tired: the pressure drops, fluid backs up, and you get swollen legs and breathlessness.
  • Your heart is like a horse pulling a cart full of sandbags. We need to reduce the load so the horse can cope. That's what the tablets do.
  • Heart failure sounds very scary, doesn't it. But don't worry, it doesn't mean it's just going to give up on you overnight. Heart Failure is a bit like business failure. A good accountant can see the money going out faster than it's coming in, and they can make changes to stop the business from eventually folding. In a similar way, we too can make changes now so the business of your heart keeps going. How does that sound?
Heart Murmur / Valve Disease
  • Heart valves are like one-way doors — they keep blood flowing in the right direction. A murmur is the sound of a door that doesn't open or close quite right.
  • Valves are like doors - they let things through when open and stop them when closed. A benign murmur is like a door that creaks — but opens and closes just fine. A pathological one is like a door that doesn't close properly and lets a draught through. The draught in your case is blood that shouldn't be going through when the valve doors are closed.
HOCM / Cardiomegaly
  • A thickened heart sounds good, but it isn't — like a bodybuilder who's so muscle-bound they can't move properly. The thick heart muscle loses its flexibility and can't pump efficiently.
Hypertension
  • Your blood travels through vessels like water through pipes. If the pressure gets too high, the weakest pipes — in the brain, kidneys, eyes, and heart — start to crack and fail. The dangerous part is you feel nothing until the damage is done. That's why we call it the silent killer.
Myocardial Infarction (Heart Attack)
  • A heart attack is like a plumbing emergency — one of the pipes supplying your heart suddenly blocks, and the muscle beyond it starts to die. The bigger the pipe, the more damage. Don't wait — call 999 immediately. The sooner it's unblocked, the less damage is done.
  • A mild heart attack is like closing a side road — inconvenient but manageable. A major one is like closing the motorway — chaos everywhere.
  • Don't wait. A heart attack is like a house fire — the longer it burns, the more structural damage. Call 999 immediately.
⚠️ A Note from CardiologistsThe simple plumbing/blockage model is technically imprecise — a heart attack is usually caused by an atheroma pimple rupturing and triggering a clot, not just a gradual build-up. For patients who need a more accurate explanation, use the cholesterol pimple analogy above instead.
Pacemaker
  • A pacemaker is like a backup generator for your heart's electrical system. It monitors the rhythm and steps in only when needed — sending a tiny prompt to keep the heart beating at the right rate.
Peripheral Arterial Disease
  • PAD is like limescale building up inside a hosepipe — the arteries to your legs are narrowed. At rest, enough blood gets through. But when you walk and the muscles demand more, the narrowed pipes can't keep up — and you get that cramping pain. Your legs are saying "not enough fuel."
Stroke
  • A stroke is like a power cut to part of the brain. When a blood vessel blocks or bursts, that area loses its power supply — and the part of the body it controls stops working.
  • Think of cholesterol like clay building up inside a pipe. Bits can break off, travel to the brain, and block the tiny blood vessels there — cutting off the power to that area and causing a stroke.
TIA (Mini-Stroke)
  • A TIA is like a brief power cut that comes back on within minutes. The lights flickered off — then on again. But the power cut was real, and it's often a warning that a bigger, more lasting one could follow. We need to investigate urgently.

🧴 Dermatology

11 conditions
Acne
  • Acne is like blocked drains. Your skin has thousands of tiny pores connected to oil glands. When dead skin and oil block those pores, bacteria infect the blockage — causing the redness and swelling of a spot.
Ageing Skin
  • Skin is like a rubber band — elastic and springy when new, but losing elasticity over time. Sun exposure accelerates that deterioration significantly.
Cellulitis
  • Cellulitis is a bacterial infection of the deeper skin layers — like an infection getting in under the floorboards. The skin becomes red, warm, and swollen as the immune system fights back. Without antibiotics, it can spread deeper quickly.
Cold Sores (Herpes Simplex)
  • The herpes virus is like a sleeping seed — it stays dormant in a nerve root for years. When you're run down, stressed, or ill, the conditions are just right for it to wake up and cause another sore.
Eczema
  • Eczema is like a damaged wall with cracks in it. Normally your skin keeps moisture in and irritants out. In eczema, that barrier is faulty — moisture escapes, the skin dries out, and irritants get in and trigger inflammation. Moisturising helps repair the wall.
Psoriasis
  • Skin cells normally renew every 28 days or so. In psoriasis, the immune system speeds that up to every 3–4 days — like a photocopier stuck on rapid copy. The excess cells pile up on the surface as the thick, scaly plaques you can see.
Rosacea
  • Rosacea is caused by overreactive blood vessels in the face — like plumbing that's too sensitive. Heat, alcohol, spicy food, or sun exposure causes them to flush and dilate rapidly. Over time, they can stay dilated permanently, leaving the background redness you've noticed.
Sebaceous Cyst
  • A cyst is like a small balloon filled with fluid — harmless most of the time, but it can get infected. We can leave it alone or, if it's bothering you, have it removed.
Seborrhoeic Keratosis
  • These are like barnacles that collect on the skin with age — completely harmless, just a normal part of getting older.
Tinea (Athlete's Foot / Ringworm)
  • Tinea is like moss on a stone — it keeps growing back from invisible roots if you don't treat it long enough. Keep going with the cream even when it looks clear, or it will return.
Urticaria / Hives
  • Hives are like tiny allergic explosions in the skin. Mast cells release histamine, which causes vessels to leak fluid and create those raised, itchy wheals. Antihistamines calm the reaction down.

🩺 Diabetes & Endocrine

5 conditions
Diabetes (Mechanism)
  • Insulin is the key that opens the door to let sugar into your cells. In type 1, there's no key at all. In type 2, the key is there but the lock is stiff — it doesn't turn easily. We need to help unlock those doors.
  • Sugar molecules in the blood are like cars on a motorway. Insulin opens the slip roads so the cars can exit and fuel different parts of your body. In diabetes, those slip roads stop working — and the cars just keep circulating.
  • Type 1: no key at all. Type 2: someone's put gum in the lock.
Diabetic Complications
  • Uncontrolled blood sugar slowly damages blood vessels — like rust building up inside pipes. Over years, it affects the smallest vessels first: in the eyes, kidneys, nerves, and feet. That's why keeping your blood sugar well controlled matters so much right now.
HbA1c
  • Your red blood cells are shaped like tiny donuts. In people with poorly controlled diabetes, those donuts pick up a dusting of sugar — like icing on a donut. The HbA1c measures how much icing is on your donuts over the past three months. The more icing, the less controlled the diabetes.
Hyperthyroidism
  • An overactive thyroid floods the body with too much thyroxine — like revving an engine too hard for too long. Everything speeds up: heart rate, metabolism, anxiety. We need to slow things down, either with tablets or iodine treatment.
  • The thyroid is like a thermostat — when it's set too high, everything overheats.
  • Think of the thyroid as the orchestra conductor and the body as the symphony. Hyperthyroidism is a conductor who's gone wild — everything is playing too fast and too loud at once.
Hypothyroidism
  • Your thyroid makes thyroxine — your body's "get up and go" chemical. When it's underactive, it's like a factory running on an inadequate power supply. Everything slows down: energy, metabolism, mood. A daily tablet restores the power.

👂 ENT

7 conditions
Ear Cleaning Advice
  • Never put anything in your ear smaller than your elbow. Your ears are self-cleaning — cotton buds do more harm than good.
  • Clean your ears with cotton buds as often as you polish the TV aerial on the roof — which is to say, never.
Ear Wax
  • Your ear canal is like a self-cleaning conveyor belt — wax naturally works its way outward. Cotton buds push it back in and disrupt the whole system. Leave it alone.
  • The ear canal is like a self-cleaning oven. If you try to clean it yourself, you break the mechanism.
Hearing Loss
  • Hearing is like a radio with an aerial. The outer and middle ear picks up the signal — like the aerial. The inner ear converts it into electrical signals the brain can process. Age-related hearing loss is like a fading aerial — the signal becomes weak and distorted.
Otitis Media / Glue Ear
  • Glue ear is like having a drum full of water — it can't vibrate properly, so sound is muffled. Most cases drain naturally over time.
  • The fluid is thick like ketchup in a bottle. A gentle Valsalva manoeuvre lets a little air in to help it start moving.
Sinusitis
  • Your sinuses are air-filled cavities behind the cheekbones and forehead — like empty rooms. When they get infected or inflamed, the lining swells and mucus builds up, creating pressure. That's the heavy, aching feeling in your face and head.
Tinnitus
  • Tinnitus is like the ringing after a loud concert — except the concert never ends. The auditory system generates a signal in the absence of real sound. It often improves over time as the brain learns to tune it out — like a clock on the wall that you eventually stop noticing.
Vertigo / BPPV
  • Tiny calcium crystals in the inner ear have come loose and rolled into the wrong canal — like a marble rolling into the wrong pipe. Every time you move your head, they slosh around and send the wrong balance signals. The Epley manoeuvre rolls them back to where they belong.

👁️ Eyes (Ophthalmology)

7 conditions
Age-Related Macular Degeneration
  • The macula is the central part of the retina — the high-resolution centre of your vision, like the middle of a TV screen. In macular degeneration, that central patch gradually wears out. You lose sharpness and detail in the middle of your vision, while the edges stay intact.
Cataract
  • The eye is like a camera. The lens focuses the image onto the retina — the film. In a cataract, the lens becomes cloudy and steamed up. Surgery replaces that cloudy lens with a clear one.
Conjunctivitis
  • Conjunctivitis is an irritation or infection of the transparent surface of the eye — like a speck of grit that causes redness and discharge. Viral types clear on their own. Bacterial types often need antibiotic drops.
Detached Retina
  • In a detached retina, the "film" at the back of the eye lifts away from the surface — like wallpaper peeling off a wall. We need to use laser to stick it back down. This is an emergency — time matters.
Dry Eyes
  • Your eyes have a thin tear film that lubricates and protects the surface — like oil in an engine. In dry eye, that film breaks down too quickly. The surface rubs against the eyelid with every blink — causing the gritty, sore feeling you describe.
Floaters
  • Floaters are tiny clumps inside the gel of the eye — like specks floating in a snowglobe. They cast shadows on the retina as they drift. Most are harmless. A sudden shower of new floaters with flashes of light, however, needs urgent assessment — it can mean a retinal tear.
Glaucoma
  • Glaucoma is caused by pressure building up inside the eye — like too much air in a balloon. That pressure gradually damages the optic nerve at the back. The trouble is, you don't notice the damage until a significant amount has already occurred. Regular eye checks catch it before it becomes irreversible.

🫃 Gastroenterology

10 conditions
Acid Reflux / GORD
  • The stomach has a one-way valve at the top — like a letterbox that should only open one way. In acid reflux, that flap doesn't seal properly, and acid washes back up into the food pipe, causing that burning feeling.
Coeliac Disease
  • Gluten triggers your immune system to attack the lining of your small bowel. Normally that lining is covered in tiny finger-like projections — like the pile of a carpet — that absorb nutrients. In coeliac, the immune reaction flattens them completely. Remove gluten, and that carpet slowly grows back.
Constipation
  • Fibre is like a sponge — it absorbs water and keeps the stool soft and moving. Without fibre and water, everything dries out and gets stuck.
Diverticular Disease
  • Think of the bowel wall like an old inner tube on a bicycle. Without enough fibre, the pressure inside builds up — and over the years, small pouches bulge out through weak spots, like bubbles forming on a worn tyre. Most cause no trouble at all. But if one gets infected, that's diverticulitis — and that needs treatment.
Gallstones
  • The gallbladder is a small pouch that squeezes bile into the bowel to help digest fat. Fill it with stones and every time it contracts, it hurts — like clenching a fist full of grit.
Haemorrhoids
  • Haemorrhoids are varicose veins around the back passage — swollen, sluggish veins that hurt when they fill with blood, just like varicose veins in the legs.
Hernia
  • A hernia is like an inner tube pushing through a split in a tyre. We need to push it back and patch the split — usually with mesh — to stop it happening again.
IBD (Crohn's / Colitis)
  • In IBD, the immune system attacks the bowel itself — like a country's own army setting fire to its own cities. The result is inflammation, bleeding, and pain. The treatments aim to calm that misdirected attack down.
IBS
  • Your bowel is normally like squeezing toothpaste steadily from one end to the other. In IBS, it squeezes erratically — like someone pinching the tube in several places at once. Nothing dangerous, but very uncomfortable.
  • IBS is like leg cramps but in your gut. The muscle is misbehaving, not diseased — which is why all the tests come back normal but the pain is completely real.
Stomach Ulcers
  • Your stomach lining has a protective coating — like the inside of a thermos flask — that stops the acid burning through. An ulcer is where that coating has been breached. The acid gets underneath and damages the exposed surface.

🌸 Gynaecology, Breast & Menopause

10 conditions
Bacterial Vaginosis (BV)
  • The vagina has its own ecosystem — good and bad bacteria in balance, like a garden. BV happens when the weeds take over. Antibiotics cut them back so the good bacteria can flourish again.
ImportantBV is not an STI — just an imbalance of normal bacteria.
Breast Lump
  • The breast is made up of glandular tissue, fat, and supportive structures — all of which can form benign lumps. Most lumps are not cancer. But any new lump needs proper assessment — you can't tell from feel alone. The triple assessment gives us the full picture: clinical examination, imaging, and biopsy if needed.
Cervical Dysplasia (Abnormal Smear)
  • Think of five cities in a line, moving away from home. Home is a normal smear. CIN 1 is the next city. CIN 2 the next. CIN 3 the next. Cancer is the farthest city. CIN is not cancer — but the journey could lead there. That's why we keep a close eye and sometimes intervene. It usually takes years to progress — it doesn't happen overnight.
Endometriosis
  • The lining of the womb sheds each month during a period. In endometriosis, that same type of tissue grows outside the womb — on the ovaries, bowel, or elsewhere. Each month, it responds to hormones just like the womb lining — bleeding, inflaming, and scarring where it has nowhere to drain. That's what causes such severe pain.
Fibroids
  • Fibroids are like potatoes buried in the wall of the womb. The more there are — and the bigger — the heavier and more painful the periods become.
HRT
  • HRT simply replaces the hormone the ovaries have stopped making — like topping up the oil in an engine that's running low. The goal is to use the lowest effective dose for the shortest time needed to manage symptoms. The risks and benefits vary depending on the type used and your individual history.
Menopause
  • Menopause is when the ovaries retire and stop producing oestrogen — like a central heating system being switched off. Without the warmth oestrogen provides, various parts of the body start to feel the chill: hot flushes, sleep disruption, joint aches, and vaginal dryness are all part of adjusting to the new temperature.
Ovarian Cyst
  • Ovarian cysts are like blisters on the ovary — fluid-filled sacs that are very common and usually harmless. Most resolve on their own. We look at size, appearance, and symptoms to decide whether to watch or act.
PCOS
  • In PCOS, the hormonal system that controls the menstrual cycle becomes unbalanced — like a conductor who's lost the score. Eggs start to develop but never fully mature or release, forming small fluid-filled follicles around the ovary instead. Insulin resistance often plays a role, which is why lifestyle changes and weight management make such a difference.
PMS / PMDD
  • Hormones fluctuate throughout the cycle — like tides. For most women, those tides are manageable. In PMS, the tidal swings are bigger and the body responds more intensely. In PMDD, those swings are significant enough to genuinely impact mood and functioning — it's a real physiological condition, not just "feeling a bit off."

🩸 Haematology

6 conditions
Anaemia
  • Your red blood cells carry oxygen around the body like delivery trucks. If there aren't enough trucks, the deliveries slow down — and you feel tired, breathless, and low in energy.
Anticoagulation (Warfarin / DOACs)
  • Anticoagulants reduce the blood's tendency to clot — keeping the flow running at the right pace. Think of blood flow like a river: too slow and it clots and blocks. Too much anticoagulant and it floods. That's why we monitor it carefully with regular blood tests.
ESR / CRP (Inflammatory Markers)
  • An ESR tells us something is going on — like a dog that senses something in the bushes but can't tell you whether it's a cat, a squirrel, or a hedgehog. We need more tests to find out what.
  • It's like finding a red stain on a shirt from the laundry — you know something happened, but you can't tell if it was cherries, beetroot, or something else.
Iron Deficiency
  • Think of iron in your body as two accounts: ferritin is the deposit account (the iron store), and haemoglobin is the current account (the iron in active use). When the deposit account empties, the current account cannot be topped up — and symptoms follow.
  • Iron is the raw material for building red blood cells. Without enough iron, the body can't build the trucks properly — they end up small and poorly loaded. We need to top up your iron stores, either through diet or tablets.
Lymph Nodes
  • Lymph nodes are filter stations along your lymph channels — they trap bacteria and bugs before they spread. When they swell, they're doing overtime — working hard to fight an infection.
Sickle Cell Disease
  • Normal red blood cells are round and flexible — they squeeze through even the tiniest vessels. In sickle cell, stress or low oxygen causes them to crumple into a crescent shape, like a bent sickle. These misshapen cells get stuck in small blood vessels and block them — causing the painful crises you experience.

🫀 Hepatology

6 conditions
Alcohol & the Liver
  • The liver needs rest just like any hard-working employee. Drink every day without a break and it burns out. Those alcohol-free days aren't optional — they're the liver's time off.
Cirrhosis
  • When the liver is damaged repeatedly over many years, it forms scar tissue — like a wound that keeps reopening and never heals cleanly. Eventually, scar tissue replaces so much working liver that it can't do its job properly. Unlike early damage, cirrhosis is largely irreversible. Our goal now is to stop any further damage and manage the consequences.
Fatty Liver (NAFLD)
  • In fatty liver, fat has built up inside the liver cells — like grime clogging the machinery of a factory. The factory still runs, but less efficiently. Most people have no symptoms at all. The good news is that the liver responds remarkably well to weight loss and exercise — given the chance, it clears the grime.
Hepatitis B / C
  • Hepatitis B and C are viruses that settle in the liver and cause ongoing inflammation — like a slow, smouldering fire. Most people feel nothing at first. But over years, the smouldering can lead to cirrhosis or liver cancer. Hepatitis C now has a cure — a course of tablets that puts the fire out completely.
Jaundice
  • The liver processes old red blood cells into bile — a yellow pigment that should drain away through the bowel. When that drain gets blocked, or the liver can't process it, the yellow pigment backs up into the blood and shows in the skin and eyes. It's like a blocked drain — the overflow becomes visible on the outside.
What the Liver Does
  • The liver is the body's main chemical factory — it cleans the blood, makes proteins, regulates sugar, and processes drugs and alcohol. Everything you eat or drink passes through it first.

🧩 Mental Health

18 conditions
Addiction & Weaning Off
  • When coming off medication, sometimes we get "thought viruses" — negative thoughts that make us feel we can't cope. They're not facts. You're going through a temporary blip, and you will come through it. Let's talk about keeping those thoughts in check.
ADHD
  • ADHD is like having a browser with too many tabs open — and no control over which one plays the audio. Attention keeps jumping between tabs, making it hard to focus on the one that actually matters. Medication helps close some of those background tabs.
Alcohol & the Liver
  • The liver needs rest just like any hard-working employee. Drink every day without a break and it burns out. Those alcohol-free days aren't optional — they're the liver's time off.
Antidepressants & Medication
  • Taking antidepressants is like using a cast on a broken leg — your body can still heal, but the cast helps you manage while it does.
  • If you had iron deficiency, you'd take iron tablets without hesitation. Depression is a deficiency in mood chemistry. The tablet tops it back up — and once you're feeling better, you can explore other approaches too.
  • Finding the right antidepressant is like finding the right shirt — you may need to try a few before you find one that fits. Not working straight away doesn't mean none will.
  • Stay on antidepressants for the full 12 months. A depressed brain is like unset jelly — take it out of the fridge too soon and it reverts to liquid. Leave it long enough, and it sets properly.
Anxiety & Stress
  • Worrying about something that may never happen is like paying interest on a loan you haven't taken out.
  • Stress is like a vase filled to the brim — one more drop and it overflows. We need to work on lowering the water level, not just mopping the floor.
Burnout
  • Life is a long-distance race, not a sprint. If you sprint the whole way, your muscles rip and tear. You need to pace yourself.
  • You're like a computer with too many programmes running at once — it slows down and eventually freezes. We need to close some programmes.
  • The more balls in the air, the more likely one gets dropped. Let's work out which ones really need juggling — and which can safely come down.
  • If someone told you there was a 30% chance of your business going bankrupt, you'd act on it immediately. Why is it different when we're talking about your health?
Counselling
  • You are not your thoughts. You are the sky — and your thoughts are clouds passing through. The sky doesn't become the clouds, and the clouds don't define the sky. Let them pass.
  • The rear-view mirror: we glance at the past occasionally to make sense of things, but we don't stare at it. Look forward — or you'll crash.
  • Life is like a tray. Sometimes there are too many things on it — or some things are just too heavy to carry. Counselling helps you work out what to put down, so the tray becomes lighter and easier to carry. What's the heaviest thing on yours right now?
Depression
  • Depression is like being stuck in a deep hole. Medication is the ladder — you still have to do the climbing, but without the ladder, you can't get out at all.
  • The depressed brain is like a bath without a plughole — serotonin leaks away before it can build up. Antidepressants are the plug that stops it escaping.
  • Fighting depression through willpower alone is like trying to settle an itch by scratching it. It usually makes things worse. Sometimes we need proper help.
  • Depression is like walking around with a motorcycle helmet on all day. You can still interact with the world — but everything takes more effort, because there is always something between you and it.
  • "It's quite normal for people to feel happy and at other times sad. For example, when somebody dies, they will feel sad. Most of the time the happiness comes back. The body does this by certain chemicals in the brain. In depression, like yours, there is an imbalance in those chemicals and they get stuck in that position. What triggers that chemical imbalance in the first place is usually an imbalance in a person's life. Can you think where there is an imbalance in your life that needs working on?"
  • It's normal to feel happy sometimes and sad at others. Most of the time, the happiness comes back on its own. Depression is when the brain chemistry gets stuck in the sad position — and we need to help shift it.
Eating Disorders
  • Eating disorders are not about food — they're about control, feelings, and how someone relates to their body and their emotions. Food becomes the language. To change the relationship with food, we need to understand what that language is saying.
Multiple Problems
  • Everyone carries a "life tray" — loaded with problems. We can't clear the whole tray today. But we can make it lighter. What's the one thing on there that, if we worked on it, would make the biggest difference right now?
OCD
  • OCD is like a faulty burglar alarm that keeps going off even when there's no intruder. The checking, repeating, or rituals are how you try to reset it — and they work briefly. But then the alarm fires again. Therapy works by teaching the brain that the alarm is oversensitive — and that it's safe to leave it alone.
Panic Disorder
  • A panic attack is like an oversensitive smoke alarm — it goes off for burnt toast, not just for fires. The alarm is very real. But that doesn't mean there's an actual emergency.
  • Your brain shouts "It's a bear — run!" and your body responds: heart racing, fast breathing, stomach churning. That's a completely normal survival response. The problem is when it fires at the wrong things. Therapy helps recalibrate what the brain treats as a bear.
Psychosomatic Complaints
  • When the brain is under stress, brain chemicals spill over into the body — causing very real physical symptoms elsewhere. Like for instance, feeling tired all the time, tummy pains, muscle aches, joint pains, headaches and so on. Have you noticed any of these?
  • When you're anxious (or depressed), your body tenses up which means all your muscles tense up. And when muscles have been tense like that all day, they start hurting. That's why you have pains in your neck and shoulders — those muscles have been tense all day.

    You can expand on it by saying… "Make a fist now. Tighten it. Let's see how long you can hold it before those muscles hurt…….. Do you see what I mean?"
PTSD
  • After trauma, the brain can become stuck on high alert — like an army that was in a war zone but can't stand down even after the war is over. The nervous system keeps scanning for danger even in safe situations. Trauma therapy helps the brain update its records — letting it know the war is over.
Refusing Counselling
  • You wouldn't fix your own broken leg or remove your own appendix. Your mind deserves the same professional attention as your body.
  • Imagine rounding a corner and a dog jumps at you. If you're scared of dogs, you panic. If you love dogs, you pat it. The situation is exactly the same — but how you handle it is completely different. Counselling changes the handling.
Resilience
  • Building resilience is like building a dam. The higher and stronger the walls, the more floodwater they can hold without overflowing. We build yours through self-care, support, and small, consistent changes.
Schizophrenia
  • Schizophrenia is like looking at life through a kaleidoscope — constantly shifting fragments of thought, perception, and behaviour that are hard to piece together into a clear picture.
Self-Harm
  • Self-harm can feel like lifting the lid off a boiling pot — a sudden release of pressure and a brief sense of calm. That release is real. But it's temporary. Can we talk about other ways to let off that steam without harming you?
⚠️ NICE GuidanceIf a patient is unable or unwilling to stop, NICE recommends discussing harm minimisation whilst addressing the underlying reasons through therapy. Focus on the WHY, not just the WHAT. In cases of overdose or chemical ingestion — always be clear: there is no safe way to self-poison.

🦴 MSK & Rheumatology

12 conditions
Back Pain
  • "Exercise is medicine" — and like all medicine, the dose matters. Too little won't work. Too much causes harm. I'll give you the right dose, and like any medicine, it only works if you take it regularly.
  • I'm pretty sure the pain is coming from the muscles in your back. They work like scaffolding around the house - they strengthen and hold up your backbone. But yours need strengthening so we can get you walking pain-free. The exercises are easy to do and each movement only takes like 5 seconds to do. So, start with once a day of each type of exercise with 10 repetitions each exercise. The following week or the week after, build up to two sets of 10 a day, and then to three a day a couple of weeks later. Come back after, and I'd be surprised if you're not at least 50% better. How would you feel if the pains were 50% better?
  • Someone who has degenerative back disease (e.g. mild-moderate OA of the spine). "From the x-ray, I can see that your back is starting to age, just like the way your skin ages with time too. This is nothing to get too worried about. 60% of people over the age of 60 will have something similar. Some people like to call it osteoarthritis, but actually, if it is mild to moderate, as in your case, it is simply your back ageing. Now, whilst there isn't much you can do about your back ageing, the good news is that if we strengthen the muscular scaffold that holds your back together, then your back pain will probably settle quite significantly. So , how would you feel about doing some back muscle exercises?"
Bursitis
  • Your joint has a small fluid-filled cushion to protect it. When it's been overworked, it gets inflamed and swollen — like a blister on a heel that's been rubbed too hard.
Cancer Recovery / Uncertainty
  • Worrying about a recurrence that may never happen is like paying interest on a loan you haven't taken out.
  • Think of your cancer history like a small balloon tied to your wrist — it's always there, but as you move forward, it stays behind you.
Chronic / Persistent Pain
  • Pain is like a radio dial. Right now it's cranked up too high and everything is too loud. We can't always turn it off completely — but we can turn it down to a comfortable listening level. That's our goal.
  • Fibromyalgia is like a sensitive car alarm that goes off even when someone just walks past. The alarm is real — but it's set far too sensitively. The treatment helps recalibrate it.
  • Sometimes we get "thought viruses" — negative thoughts that actually make the nervous system more sensitive and the pain worse. Addressing those thoughts is part of the treatment, not an alternative to it.
Exercise as Medicine
  • "Exercise is medicine" — and like all medicine, the dose matters. Too little won't work. Too much causes harm. The right dose, taken regularly, is what makes the difference.
Fibromyalgia
  • People who have fibromyalgia have a pain mechanism a bit like a sensitive car alarm - which goes off too quickly, even when someone just walks past.
  • Fibromyalgia is like a sensitive car alarm that goes off even when someone just walks past. The alarm is real — but it's set far too sensitively. The treatment helps recalibrate it.
Fracture (Hairline)
  • A hairline fracture is too thin to see on a fresh x-ray — like a crack in glass you only spot when the light catches it at the right angle. A "bone scab" forms over the next two weeks, which shows up much more clearly.
Frozen Shoulder
  • The shoulder is a ball in a socket, surrounded by a loose capsule that allows it to move freely. In frozen shoulder, that capsule shrinks and thickens — like a leather glove that's been left to dry out. Movement becomes progressively more restricted as the capsule tightens. It resolves in time, but physio helps speed that up.
Gout
  • Gout happens when uric acid levels get too high and the acid crystallises in joints — like too much sugar crystallising at the bottom of a cup of tea. Those crystals have sharp edges. That's why it's so agonisingly painful when you move the joint.
Osteoarthritis
⚠️ Word choice matters: always say "wear and REPAIR" — never "wear and tear""Wear and tear" gives patients a sense of helplessness — like their joints are crumbling. "Wear and repair" gives hope and reflects the biology more accurately. It's a small change that makes a large psychological difference.
  • Your joint is showing age-related changes — like the way skin changes over time. Nothing alarming. The joint is still trying to repair itself, which is why strengthening the muscles around it makes such a difference. Stronger muscles mean less load on the joint — less work for it to do.
  • From the x-ray, your back is starting to age — the same thing that happens to skin with time. 60% of people your age show the same on imaging. The good news: strengthening your back muscles is like adding scaffolding — it supports and stabilises what's underneath. How would you feel about some back exercises?
Osteoporosis
  • Bone is constantly being broken down and rebuilt — like scaffolding that's endlessly dismantled and reconstructed. After the menopause, or with certain medications, the demolition starts outpacing the construction. The bones become lighter and more fragile. A DEXA scan measures just how thin that scaffolding has become.
Rheumatoid Arthritis
  • In RA, the immune system attacks your own joints — like a security guard who's turned on the building they were hired to protect. The inflammation damages the joint lining, cartilage, and bone. The medications calm that misdirected guard down.
Tendinopathy / Tennis & Golfer's Elbow
  • This is like a fraying rope — the tendons have been overloaded repeatedly and developed tiny tears. They've never had enough rest to fully heal. Gradual rehabilitation lets those fibres repair properly.

🧠 Neurology

10 conditions
Bell's Palsy
  • Bell's palsy is caused by inflammation of the nerve that controls your facial muscles — like a kink in a garden hose that stops the water flowing. When the signal can't get through, the muscles on that side weaken. In most cases, as the inflammation settles, the signal returns and the face recovers.
Carpal Tunnel Syndrome
  • The carpal tunnel is a narrow channel in the wrist that the main nerve passes through — like a cable going through a tight tube. When the tunnel becomes swollen, it squeezes the nerve and interferes with the signal. That's what causes the tingling and numbness in your hand.
Dementia
  • The brain is like a filing cabinet. In dementia, more and more drawers start jamming and can't be opened. The medication tries to loosen those drawers, but unfortunately it doesn't always work.
Epilepsy / Fits
  • Epilepsy is like an electrical storm in the brain. The brain cells start firing chaotically — like a crowd at a concert where one person starts screaming and it spreads through the whole venue. The medication damps down those overexcited cells.
  • Think of it as a short circuit — electricity going round and round out of control until the circuit is broken.
Migraine
  • A migraine isn't just a bad headache — it's a neurological storm. Think of the brain as sensitive electrical equipment that's been overloaded and starts misfiring. Blood vessels change, nerves become hypersensitive, and normal processing shuts down. The aura is the electrical surge before the blackout.
Multiple Sclerosis (MS)
  • In MS, the immune system attacks the insulation around nerve fibres — like stripping the plastic coating off electrical wires. When the wiring shorts and misfires, signals don't get through. That's why symptoms vary so widely — it depends which wires are affected.
Parkinson's Disease
  • Parkinson's happens because the brain stops producing enough dopamine — the signal that tells your muscles to move smoothly. Without it, movement becomes like a car with a failing gear system — slow, stiff, and jerky. The medication replaces the dopamine and helps the gears engage properly again.
Peripheral Neuropathy
  • Peripheral neuropathy is damage to the wiring in your hands and feet — like frayed cable at the end of a long extension lead. Signals get distorted on the way through: that's why you get tingling, numbness, or strange burning sensations. In diabetes, high blood sugar slowly damages those wires over time.
Tension Headache
  • Paracetamol is not the answer here. It's like telling someone to take painkillers because they keep punching themselves in the head. We need to work on what's causing the tension — not just mask the result.
Vertigo / BPPV
  • In BPPV, tiny calcium crystals in the inner ear have come loose and rolled into the wrong canal — like a marble rolling into the wrong pipe. When you move your head, they slosh around and send incorrect balance signals to the brain — making the room feel like it's spinning. The Epley manoeuvre rolls them back to where they belong.

🤰 Obstetrics

6 conditions
Gestational Diabetes
  • Pregnancy puts enormous demands on the insulin system — like suddenly doubling the load on a machine. In gestational diabetes, the pancreas can't produce enough insulin to keep up with that extra demand and blood sugar rises. Managing it well protects both you and the baby.
How Pregnancy Works
  • Think of implantation like a seed planting itself in rich soil. Once embedded, the placenta develops — acting like a root system that draws nutrients and oxygen from your bloodstream to feed the growing baby.
Labour / Contractions
  • Contractions are the uterus gradually tightening and squeezing — like a hand slowly clenching into a fist, then releasing. Each contraction pushes the baby downward while also opening the cervix. They start irregular and mild, then become stronger and more frequent as labour progresses.
Morning Sickness
  • Morning sickness is caused by a rapid surge in pregnancy hormones — your body hasn't adjusted to the new chemistry yet. It's a bit like motion sickness at the start of a long journey — most people find their sea legs by 12–16 weeks.
Placenta Praevia
  • The placenta is your baby's life-support system. Normally it sits high up in the uterus. In placenta praevia, it's lying low — partially or completely covering the exit. Think of it like a doorstop in front of the door the baby needs to come through. That's why a caesarean section is necessary.
Pre-Eclampsia
  • Pre-eclampsia involves the placenta sending abnormal signals that cause blood vessels throughout the body to tighten up — like turning up the pressure in a whole plumbing system simultaneously. That's why blood pressure rises and the kidneys come under strain. It needs careful monitoring and sometimes early delivery.

🎗️ Oncology & Palliative Care

5 conditions
Cancer Screening
  • Cancer screening is like putting your car on a diagnostic machine — we're looking for early warning signs before serious problems develop. The earlier we find things, the more options we have.
Chemotherapy
  • Chemotherapy targets rapidly dividing cells — which is what cancer cells do. But some healthy cells also divide rapidly: hair follicles, the gut lining, and bone marrow. That's why it affects those areas too, causing hair loss, nausea, and fatigue. It's not specific enough to only attack the cancer — it's more like a powerful weed killer that affects some of the lawn too.
Radiotherapy
  • Radiotherapy is a beam of focused energy aimed precisely at the cancer — like burning out a specific weed with a precision laser rather than digging up the whole garden. The goal is to destroy the cancer while protecting the surrounding healthy tissue as much as possible.
Remission & Palliative Care
  • Remission means the cancer is no longer detectable or no longer growing — like a fire that's been put out. The building is standing, but we keep watching for embers.
  • Palliative care isn't giving up — it's changing the goal. Instead of trying to put the fire out completely, we focus on making sure you're as comfortable and well as possible for as long as possible. That's not a lesser aim — it's a different and equally important one.
What is Cancer?
  • Every cell runs a programme for repair and reproduction. Cancer happens when that programme develops a fault — like a photocopier that loses its settings and starts making distorted copies endlessly, taking up space and resources the normal cells need.

🫘 Renal & Urology

7 conditions
Benign Prostatic Hypertrophy (BPH)
  • The prostate is donut-shaped and sits around the tube you urinate through. As it grows, the donut gets bigger and the hole gets smaller — squeezing the tube and making it harder to pass water.
Chronic Kidney Disease (CKD)
  • Your kidneys are filters — removing waste from the blood. Your filter isn't working as well as it used to, but it's still doing an adequate job. We need to monitor it closely and protect what's left.
Kidney Stones
  • Kidney stones form when minerals in the urine crystallise and clump together — like limescale in a kettle, but inside your kidney. Passing a small stone feels like trying to squeeze a rough pebble through a narrow tube. Drink plenty of water — it dilutes the minerals and keeps things moving.
Prostate Cancer
  • The prostate is a walnut-sized gland just below the bladder. Unlike many cancers, prostate cancer often grows very slowly — sometimes so slowly it never becomes a problem. PSA blood tests help us keep an eye on whether it's behaving or becoming more active.
Stress Incontinence
  • Stress incontinence happens when the valve controlling urine flow can't cope with sudden pressure — like a worn washer in a tap. Coughing, sneezing, or laughing creates a pressure spike and the washer leaks. Pelvic floor exercises strengthen that washer so it holds firm.
Testicular Self-Examination
  • Examining a testicle is like squeezing a peach — it should be soft and smooth. If you feel something hard, like the stone inside, see a doctor straight away.
UTI
  • A UTI is a bacterial invasion of the urinary system — bacteria get in and travel upwards, irritating the bladder lining as they go. The burning, urgency, and frequency are your body fighting back. Antibiotics clear the invaders.

🔬 Reproductive System & Sexual Health

7 conditions
Erectile Dysfunction
  • Erections depend on good blood flow — the arteries supplying the penis need to dilate and fill the tissue properly. ED is often an early warning that the vascular system isn't working optimally. Think of it like a warning light on the dashboard — it may indicate something worth investigating more broadly, including cardiovascular health.
Genital Herpes
  • The herpes virus hides in nerve tissue and can reactivate periodically — like the cold sore virus. Between outbreaks you may have no symptoms and may not know it's there. That's why transmission can happen without either partner being aware.
HPV
  • HPV is extremely common — most sexually active people encounter it at some point. Think of it like a common cold for the cervix. In most cases, the immune system clears it within two years. In a small number of people, certain strains persist and cause cell changes — which is exactly why cervical screening is so important.
Premature Ejaculation
  • PE is often about a reflex that fires too quickly — like a hair-trigger mechanism that needs recalibrating. With practice, relaxation, and technique, that trigger can be adjusted. It's a learned response, not a permanent condition.
STIs (e.g. Chlamydia)
  • Many STIs — including chlamydia — are like silent stowaways. They can be present for months or years without causing any symptoms, quietly doing damage. The only way to know is to test.
The Contraceptive Pill
  • The pill works by sending a hormonal signal that puts the ovaries on pause — no egg is released, so pregnancy can't occur. But that pause needs to be maintained consistently — which is why taking it at the same time every day matters.
UKMEC Score (Contraception Safety) 👥
  • Every contraceptive option has a safety score based on your health background — that's the UKMEC score. With your current history, this option scores 3, meaning the risks outweigh the benefits. Moving to [alternative] scores 1 — that's the safe zone. What are your thoughts?
  • There are different types of contraception as you know – some more safer than others. The way we work out whether one is safe for you is to use a contraception risk calculator called the UKMEC score. Because your older and because you're over the ideal weight, staying on your current medication gives you a score of 3, which means it is no longer safe. Going onto something like the minipill gives you a safer score of 1. What are your thoughts

🫁 Respiratory

11 conditions
Asthma
  • Your airways are like flexible tubes. In asthma, something triggers them to go into spasm — they narrow and stiffen, making it hard to push air through. Like trying to breathe through a straw. The inhaler relaxes those tubes and opens them back up.
  • You said that you smoke in the kitchen and not in presence of your little one, and that's good to see you care so much about their health. The thing is, the house is a bit like one big box. Even if you smoke in the kitchen, the smoke toxins drift through every room invisibly. Your child's airways don't know which room they came from — so smoking outside is the only real solution.
Blue and Brown Inhalers
  • Think of them like the safety devices in your car. The brown inhaler is your seatbelt — you put it on every single day to prevent a crash. The blue one is the airbag — it only comes out if you actually crash.
COPD
  • COPD is like trying to breathe through a partly crushed straw. The airways have lost their springiness and some air sacs are permanently damaged — stale air gets trapped inside. That's why you feel breathless, especially when you're active.
Emphysema
  • Emphysema creates little blisters on the lung surface. These trap air inside them and can't exchange oxygen, so you always feel breathless. Occasionally, a blister bursts — and that causes a collapsed lung.
Lung Anatomy 👥
  • Your lungs are like the branches of a tree. As you go deeper, they keep branching until they end in tiny air pockets — called alveoli — like leaves at the tips of the branches.
Peak Flow Meter
  • The peak flow meter is like a speedometer for your lungs. When your asthma is playing up, your lung-speed drops — and we can see exactly how much. It tells me how bad things are before you even describe your symptoms.
Pneumonia
  • Pneumonia is like a sponge that's become waterlogged. Your tiny air sacs should stay open and dry to exchange oxygen. In pneumonia, they fill with fluid and debris — and a soggy sponge doesn't let air through.
Pulmonary Embolism (PE)
  • A PE is a blood clot that travels to the lungs. Think of the lung blood vessels like an irrigation system — when a clot blocks one of those pipes, blood can't reach that section of lung, oxygen exchange stops, and you feel suddenly breathless and in pain. It needs urgent treatment.
Sleep Apnoea
  • Sleep apnoea is like sleeping with a hosepipe that keeps kinking. When you're awake, the airway stays open. But as your muscles relax in sleep, the throat collapses and cuts off airflow — sometimes hundreds of times a night. Your brain keeps waking you just enough to reopen it. That's why you feel exhausted even after a full night in bed.
Tuberculosis (TB)
  • TB is a slow-burning infection — like a smouldering fire inside the lung. It can sit quietly for years without obvious symptoms. Treatment takes six months because we need to make sure every last ember is completely put out, not just the visible flames.
URTI — Antibiotics & Reassurance
  • Antibiotics only work on bacteria — not viruses. Using them for a viral infection is like using weed killer on an ant problem. Wrong tool.
  • It is like using an umbrella to keep warm in winter — the wrong thing entirely. And when it actually rains, your umbrella is worn out.
  • Like casting a large net to catch minnows — viruses just slip straight through the holes.
  • It's like using rat poison for ants — it won't work and it wastes the ammunition. Viruses kill themselves off in 5–7 days anyway.
  • "There's a lot of it going around" — genuinely therapeutic. It normalises, reassures, and sets realistic expectations in one sentence.

📖 The Theory Behind Medical Analogies

Why they work, how to build one, and how two videos changed the way a generation of trainees think about explanation.

This is the Synectic Model of Teaching — from the Greek synektikos, meaning "the joining of different ideas." You may also see it called Reasoning by Analogy. In this context, we call it what it is: medical analogies.

The principle is simple. When you want a patient to understand something unfamiliar, you compare it to something they already know. In doing so, you borrow their existing understanding and attach your new information to it. The unfamiliar becomes familiar. The complex becomes manageable. And crucially — it sticks.

Not every explanation needs an analogy. Sometimes plain, clear language is all you need. But when a concept is genuinely hard to picture — a physiological process, a mechanism of disease, a reason why something matters — an analogy is one of the most powerful tools a doctor has. It simplifies without dumbing down. And simplification, done well, is one of the highest communication skills in medicine.

A Classic Example: Leeds to Birmingham

Think about driving from Leeds to Birmingham without a map. You can do it — but you will take longer to get there, you may get lost along the way, and you will feel uncomfortable throughout the journey because you never quite know if you are on track.

Setting aims and objectives for a teaching session works in exactly the same way. Without them, the tutorial risks becoming messy, unstructured, and inefficient — for both the trainer and the trainee. The map is the plan. The destination is the learning outcome.

Notice what just happened there. A dry pedagogical principle became instantly understandable. That is what a good analogy does.

The Anatomy of a Good Analogy

Every analogy has four parts. Understanding them helps you build better ones.

1
Target
The unfamiliar concept you want to explain — e.g. heart failure
2
Connector
The shared quality that makes the comparison work — e.g. a pump that tires out
3
Analog
The familiar thing you are comparing it to — e.g. a water fountain pump
4
Check
Confirming the patient understood correctly — never skip this step

Two Videos Worth Watching

Video 1 — Diabetes — lock & key analogy

Watch this video to show how the person explains the difference between type 1 and 2 diabetes by comparing it to the ANALOGY - a lock and key (something we are all familiar with).

▶ Watch on YouTube

Video 2 — The Power of Words

This one is for every trainee who has ever said to their trainer: "but that's what I said." It usually isn't. It is something vaguely similar — but in the moment, it felt identical. This video shows how a small change in wording — not the idea, not the intention, just the precise choice of words — creates a profoundly different response in another person. It starts with a blind man on the street. Watch it once and you will never again assume that what you meant to say is the same as what landed.

▶ Watch on YouTube

🔦 The LASER Framework — A Practical Structure

Use this as a scaffold when you are constructing or delivering an analogy. It takes about ten seconds once it becomes habit.

L
Link
"You know how pipes can get furred up with limescale..."
A
Analogise
"...well, something similar happens inside your blood vessels."
S
Stay Simple
One comparison at a time. Two analogies in a row cancels both.
E
Explain
Spell out what the comparison tells us. Never assume they made the leap.
R
Reflect Back
"Does that make sense?" — then actually listen to the answer.

When NOT To Use an Analogy

  • When the patient is acutely distressed — empathy first, explanation later
  • When breaking serious news — be direct first; analogies can follow once the shock has settled
  • When the cultural reference won't land — choose universal experiences (water, roads, machines, weather)
  • When the analogy is technically misleading — know where yours breaks down, and name it before the patient does
  • When you don't have a good one — a clear plain-English explanation beats a strained analogy every time

⚠️ Six Mistakes to Avoid

  • Not checking understanding — delivering a brilliant analogy and moving on is a waste of it
  • Unfamiliar frame — don't use a diesel engine comparison unless you know they're a mechanic
  • Stacking analogies — "it's like a pipe… or maybe a sponge… or think of a filter…" confuses everyone
  • Breaking badly — every analogy has limits; acknowledge them or it backfires
  • Wrong emotional moment — using a clever comparison when someone is tearful feels dismissive
  • "Wear and tear" for OA — it implies permanent helpless damage. Always say "wear and repair" instead

💬 From the GP Training Community

Distilled from UK GP training forums, deanery resources, SCA preparation discussions, and the collective experience of trainees who've been there. Selected because they're genuinely useful — not because they sound impressive.

🎯 How to Use Analogies Well: Tips from Trainers & Trainees

1
Know your patient first. Ask a bit about their work or background before choosing your analogy. An engineer gets a different explanation of blood pressure from a baker. An analogy that doesn't land is worse than no analogy at all.
2
Start from their starting point. If a patient says "it feels like my wiring is shorting out" — use that. The best analogy is often the one they hand you themselves.
3
One at a time. Stacking two analogies back-to-back cancels both out. Say one thing. Check it landed. Move on.
4
Acknowledge where it breaks down. Every analogy has limits. Name them. "Of course, the body is more complex than a central heating system, but it gives you the general idea." This builds trust rather than undermining it.
5
Practice on real people. Explain a condition to a family member tonight. If they don't follow it, the analogy needs work — not them. Medical educators recommend this as a specific, active preparation exercise.
6
In the SCA, the check is the mark. UK GP trainers consistently report that candidates who use an analogy AND explicitly check understanding score better in the explanation domain. The analogy alone isn't enough — the check is where the examiner sees shared understanding.
7
Don't force one. A clear plain-English explanation is always better than a strained analogy. Trainees who reach for an analogy when they don't have a good one often make things more confusing. If it doesn't feel natural, leave it.
8
Match the tone. A playful analogy in a mental health consultation can feel dismissive. A heavy analogy for a simple explanation creates unnecessary alarm. The best analogies match the emotional register of the consultation.
9
Keep it universal for IMGs. Not all analogies cross cultures. Avoid references that depend on UK-specific experiences. Water, pipes, machines, roads, weather — these work everywhere.
10
Build your own bank. Every consultation where you explain something well is a deposit. Keep a note of what worked. Experienced GP trainers consistently say their best analogies came from patients themselves, or from thinking on their feet in clinic.

⚠️ A Word of Caution from the Research

A review published in a surgical journal found that over one-fifth of medical analogies in clinical settings may inadvertently reinforce unhelpful thinking. The most common culprits:

  • "Wear and tear" for joints — implies irreversible damage, promotes helplessness. Say "wear and repair" instead.
  • Battle and war language for cancer — framing illness as a fight means patients who don't recover have "lost." Handle with care.
  • Analogies that imply overuse caused the damage — "your back is crumbling" or "you've worn the cartilage away" — reinforces avoidance and catastrophising.
  • Analogies that promise too much — "a gel injection for your knee is like an oil change for your car" — implies renewal that isn't medically possible.

The fix is simple: know where your analogy breaks down, and say so before the patient does.

💡 What UK GP Trainers Say About Analogies in the SCA

Based on guidance from the North West Consultation Toolkit (RCGP-endorsed), SCA preparation resources, and experienced GP trainer feedback:

  • A well-structured explanation — stripped of jargon, using analogies where helpful, checked for understanding — is one of the most consistently differentiating consultation skills in the SCA.
  • Candidates who check understanding actively ("does that make sense to you?" followed by genuine listening) score better than those who deliver explanations without checking.
  • The best SCA explanations start from what the patient already knows and build from there — not from textbook definitions.
  • Signposting before an explanation ("Let me explain what I think is happening, and then we can talk about what to do") helps patients follow along and increases their recall.
  • Analogy + check = marks. Analogy alone = partial credit at best.

✨ New Analogies From the Wider Medical Community

Collected from doctors sharing their favourites in online forums and medical discussions. Selected for quality, simplicity, and direct applicability to UK GP. Simplified and tightened for this page.

🦷 Vaccines / Immunisation

A vaccine is like giving your immune system a wanted poster for the criminal before they actually show up. When the real infection arrives, your immune system recognises it immediately and knows exactly how to respond.

😔 Depression (Alternative)

Depression is like walking around with a motorcycle helmet on all the time. You can still interact with the world — but everything takes more effort, because there is always something between you and it.

🌺 Fertility / PCOS

Some women are like dandelions — they can thrive in almost any conditions. Others are more like orchids — they need exactly the right environment to bloom. Neither is broken. One just needs more from us.

💪 Exercise as Medicine

Exercise is like a Credit Union — the more you put in consistently, the more you get out. But like any account, a one-off large deposit doesn't make up for months of inactivity.

🏋️ Fibromyalgia

Fibromyalgia is like the day after your first really heavy gym session — when your muscles are screaming at you with every move. Except you never actually did the workout. And it doesn't go away the next morning.

❤️ MI Recovery ("Your Heart Now")

Your heart is no longer a sports car — it's a reliable hatchback. Hatchbacks don't like hills. But treat it right, don't push it too hard, and it'll get you reliably where you need to go.

💊 Antibiotics for Viruses

Using antibiotics for a viral infection is like using an umbrella to stay warm in winter. It won't work — and when it actually rains, your umbrella might be worn out.

Or: it's like casting a net to catch minnows — the viruses just slip straight through the holes.

🩸 Iron Stores (Ferritin)

Think of iron in your body like two accounts. The ferritin level is the deposit account — the iron store. Your haemoglobin is the current account — what's in active circulation. When the deposit account runs dry, the current account can't be replenished.

💧 Hydration and the Kidneys

Your kidneys flush waste products out of the blood using water as the vehicle. If you don't drink enough, it's like trying to rinse something out with a half-full bucket — not enough water to do the job properly.

🧠 Unresolved Trauma

Unresolved trauma is like playing whack-a-mole. If you don't deal with the source, it keeps popping up in different places — as anxiety, physical symptoms, sleep problems, or relationship difficulties. You can't whack your way out of it.

🎓 Trainer & Teaching Pearls

For educators: how to teach this skill, not just practise it.

Make It Theirs

The best analogy isn't yours — it's the one that resonates with this patient's life. A mechanic might connect with a car engine. A baker with yeast and fermentation. Ask first: "What do you do for work?" and build from there.

The Check Is the Point

An analogy without a comprehension check is half a conversation. Always follow with: "Does that make sense?" or "In your own words, what does that mean for you?" — and actually listen to the answer.

The SCA Implications

Using a well-chosen analogy and explicitly checking understanding scores in the explanation domain. Just using one without checking is incomplete. The check is what demonstrates shared understanding — and that's what the examiner is looking for.

Wear and REPAIR

Demonstrating this one word change live in a teaching session is powerful. Ask trainees: how would you feel if your doctor said your joints were "crumbling"? Then watch their faces as you say "wear and repair" instead.

Video First

Use the Dr Rahul Thakurr and "Power of Words" videos before teaching content. Seeing the patient reaction to a well-used analogy teaches more than any explanation of the technique can.

Build the Bank

Encourage trainees to collect analogies the way they collect clinical pearls — in a notebook, on a phone. The ones that feel natural are the ones that get used. Give them a reason to start collecting now.

🟣 Reflective Questions for Trainees

  • Can you recall the last time you used an analogy in a consultation? Did you check whether it landed?
  • Which conditions do you struggle most to explain? Find an analogy for one of those this week.
  • What's the difference between simplifying an explanation and dumbing it down?
  • When might a well-meaning analogy actually cause harm?

📚 Recommended Books

Two books every GP should read — they'll change how you explain pain and chronic illness forever.
📘
Explain Pain
David Butler & Lorimer Moseley — Noigroup Publications

The gold standard for pain science education. Brilliant analogies for complex pain, central sensitisation, and the nervous system — many directly usable in consultation.

📗
Therapeutic Neuroscience Education
Adriaan Louw — OPTP

Practical patient education for chronic pain — filled with diagrams and analogies that make neuroscience genuinely accessible to patients.

🏁 Take-Home Points

The Essentials — Carried Away From This Page

  • An analogy is a comparison between something unfamiliar and something the patient already understands — the bridge between your world and theirs.
  • Use the LASER framework: Link → Analogise → Stay Simple → Explain → Reflect Back. The "R" is not optional.
  • Always check understanding after using an analogy. The "aha" moment is the goal — not the analogy itself.
  • One analogy at a time. Stacking them causes confusion, not clarity.
  • Know where your analogy breaks down — and name it before the patient does.
  • Never say "wear and tear" for OA. Always say "wear and repair." One word change. Large psychological impact.
  • The best analogy is the one you adapt for the person sitting in front of you. Make it personal, and it will be remembered.
  • In the SCA, using a relevant analogy and explicitly checking patient understanding scores marks in the explanation domain. This is a learnable, assessable skill.

5 thoughts on “medical analogies”

  1. There is a big clay sticks into the wall of one of your blood pipes. When the blood flow through them overtime, the clay can be broken down into small piece and travel around your body. If it goes to your brain and blocks the small pipe of the brain or make the small pipe burst, you get stroke.
    I am not sure whether I am correct or not (I am using the contents you used and the definition of stroke). Am I using clay instead of clots correct? I am a 3rd year pharmacy student and your website is really helpful. I greatly appreciate that you created this website because I really bad as explanation the medical terms into layman’s terms . Thank you very much and grateful for your advice.

  2. Heart Failure: heart failure doesn’t mean you’re going to drop down dead. Heart failure is like business failure: an accountant can tell a business is failing, that less money is coming in than is going out, long before the bailiffs have to be called in. The accountant will advise the business to make changes so they can keep going. In the same way, we have to make some changes (lifestyle, medication) to get the best out of your somewhat second rate heart.

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