Medical mnemonics are memory aids that help students and clinicians quickly recall complex information—everything from cranial nerves to causes of diseases. They were absolute lifesavers for me during medical school, and some still come in handy for my medical practice. Here are some of the most widely used and useful ones, grouped by topic:
🧠 Cranial Nerves (Order & Function)
Names (in order):
On Old Olympus’ Towering Top, A Finn And German Viewed Some Hops
→ Olfactory, Optic, Oculomotor, Trochlear, Trigeminal, Abducens, Facial, Vestibulocochlear, Glossopharyngeal, Vagus, Accessory, Hypoglossal
Function (Sensory/Motor/Both):
“Some Say Marry Money, But My Brother Says Big Brains Matter More”
❤️ Causes of Chest Pain (Serious)
“MONA” (also used in treatment of heart attacks):
- Morphine
- Oxygen
- Nitroglycerin
- Aspirin
“ABCDE” for life-threatening causes:
- Aortic dissection
- Pulmonary Bolus (embolism)
- Coronary syndrome (heart attack)
- Dead lung (tension pneumothorax)
- Esophageal rupture
🧬 Lupus Diagnostic Criteria
“SOAP BRAIN MD”
- Serositis
- Oral ulcers
- Arthritis
- Photosensitivity
- Blood disorders
- Renal involvement
- ANA
- Immunologic disorders
- Neurologic symptoms
- Malar rash
- Discoid rash
🧪 Causes of Anion Gap Metabolic Acidosis
“MUDPILES”
- Methanol
- Uremia
- Diabetic ketoacidosis
- Propylene glycol / Paracetamol
- Infection / Iron / Isoniazid
- Lactic acidosis
- Ethylene glycol
- Salicylates
🫀 Heart Valve Auscultation Areas
“All Physicians Take Money”
- Aortic → Right 2nd intercostal space
- Pulmonic → Left 2nd intercostal space
- Tricuspid → Left lower sternal border
- Mitral → Apex (5th intercostal, midclavicular line)
🦴 Carpal Bones (Wrist)
“Some Lovers Try Positions That They Can’t Handle” ***This one is one of my favorites!***
- Scaphoid
- Lunate
- Triquetrum
- Pisiform
- Trapezium
- Trapezoid
- Capitate
- Hamate
🧫 Tendons In Thumb
“SEX LAB” ***Another favorite!***
Short Extensor (Extensor Pollicis Brevis), Long Abductor (Abductor Pollicis Longus)
🩺 Symptoms of Hypocalcemia
“CATS go numb”
- Convulsions
- Arrhythmias
- Tetany
- Spasms/Stridor
🧍♂️ Parkinson’s Disease Symptoms
“TRAP”
- Tremor
- Rigidity
- Akinesia (or bradykinesia)
- Postural instability
🧠 Stroke Warning Signs
Mnemonic: “FAST”
- Face drooping
- Arm weakness
- Speech difficulty
- Time to call emergency services
🧠 Anticholinergic Toxicity
Classic Description:
- Hot as a hare
- Blind as a bat
- Red as a beet
- Mad as a hatter
- Dry as a bone
🧠 Why the Weird Ones Work
Why the weird ones work
The more inappropriate, vivid, or absurd, the better your brain encodes it. Medicine is heavy memorization—so people lean into humor (even dark humor) to survive it.
Why mnemonics matter
They’re not just for exams—they’re used daily in clinical settings where quick recall can be critical. Good mnemonics:
- Simplify complex lists
- Improve speed under pressure
- Reduce errors in diagnosis or treatment
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