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Built by a practicing doctor · Sources: NHS, NICE, AAOS & more
💛 Friendly guidance: not medical advice💛 Friendly guidance · Always consult your doctorConsult your doctor · Disclaimer
Friendly general guidance. Your surgical team’s pre-operative instructions always override anything on this page. If in doubt: call and ask.

Preparing for Surgery

The questions patients forget to ask before surgery: fasting rules, which medications to stop and when, how to prepare your home, what to pack, and what to ask your surgeon. All based on published clinical guidelines.

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Based on guidance from NHS, NICE, AAOS & healthdirect
Last reviewed: July 2026 · Free to use · No data collected
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🍴 Fasting before surgery: the rules
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No food for 6 hours before surgery
Solid food, milk, milky drinks, chewing gum, and sweets all count as food. This includes a light breakfast: even toast. The 6-hour rule applies regardless of how minor the procedure seems.
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Clear fluids permitted until 2 hours before: usually
Clear fluids: water, black tea or coffee (no milk), clear apple juice, sports drinks without pulp. Most anaesthetists permit these until 2 hours before. Your specific instructions override this. If told nothing after midnight: follow that.
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Regular medications: usually take with a small sip of water
Blood pressure, heart, thyroid, antidepressants, and epilepsy medications are generally taken on the morning of surgery with a small sip of water. Specific medications to stop are listed below. If uncertain: call your anaesthetist’s rooms the day before.
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Why fasting matters: it is not bureaucracy
General anaesthesia removes the reflexes that prevent stomach contents entering the lungs (aspiration). Aspiration pneumonia is a serious and preventable complication. Fasting is the primary prevention. If you eat or drink within the restricted period — tell your surgical team. Surgery may be cancelled for your safety, not as punishment.
📚 Based on guidance from:
💊Medications to stop before surgery: and when

Based on NHS pre-operative guidance, healthdirect, and NICE surgical preparation guidelines.

These are general guidelines. Your surgical team’s specific instructions always take priority. Never stop heart, blood pressure, epilepsy, or psychiatric medications without explicit instruction.

MedicationWhen to stopImportant note
Warfarin5 days beforeConfirm with your surgical team: may need bridging therapy with enoxaparin. Never stop without instruction.
Apixaban (Eliquis), Rivaroxaban (Xarelto)48 hours before (longer for major surgery)Confirm exact timing with your surgeon. Shorter half-life than warfarin but still significant.
Clopidogrel (Plavix)5–7 days beforeIf taken after a stent: do NOT stop without cardiology approval. Stopping prematurely risks stent thrombosis.
Aspirin7 days before (elective surgery)If taken for cardiac protection after stent or heart attack. Do NOT stop without cardiologist approval.
Ibuprofen, naproxen, diclofenac (NSAIDs)7 days beforeAffect platelet function and increase bleeding risk. Paracetamol is safe to continue.
Vitamin E, fish oil, garlic supplements7–10 days beforeAll increase bleeding risk. Often overlooked: tell your surgical team about all supplements.
Metformin24–48 hours before (some surgeons request day before)Risk of lactic acidosis with contrast dye or prolonged fasting. Confirm with your surgical team.
GLP-1 agonists (Ozempic, Wegovy, Victoza)1 week before (weekly injection) or day before (daily)Slow gastric emptying: significantly increases aspiration risk. Your anaesthetist needs to know if you take these.
Herbal supplements (St John’s Wort, ginkgo, ginseng)7–14 days beforeInteract with anaesthetic agents and increase bleeding. Disclose all herbal supplements at pre-op assessment.
Oral contraceptive pill4 weeks before major surgery (not needed for minor)Increases DVT risk with prolonged immobility. Discuss with your GP and surgeon specifically.
📚 Based on guidance from:
🏠Prepare your home before you go in

Do this before admission — not when you get home in pain. Tick each one off as you go.

Track your wound healing

Take a photo of your wound each day. The ghost overlay lines up your previous photo so you can spot changes. Drag the reveal slider to compare before and after. Bring the photos to your next appointment. If something looks off, try our wound symptom checker.

100% private. Photos stay on your device. Nothing uploaded.

📷 Open wound photo journal →
Surgery preparation essentials
Things worth having at home before surgery day, so you can focus on recovery when you get back.
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Set up a pill organiser before you go in. You will come home with medications and a foggy head — having the system ready helps. Pill organiser →
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A recovery journal helps you track symptoms, medications and questions for your surgical team, invaluable when your memory is hazy. Recovery journal →
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A wedge pillow helps you get in and out of bed and sleep elevated, useful after almost any surgery. Wedge pillow →
Postopcare.info may earn a small commission from Amazon at no cost to you. These are things patients have told us genuinely helped their recovery: nothing else.
Related guides
Questions to Ask Your Surgeon →

Your recovery toolkit

Free interactive tools to track your recovery day by day. Everything stays on your device — nothing is uploaded or shared.

These tools support — never replace — the advice of your surgical team. If something feels wrong, contact your doctor or emergency services.

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Also useful
📋 Surgery preparation checklist 💊 Medications to stop before surgery 🍚 Diet before and after surgery 🏠 Just got home from surgery 📅 Between discharge and first appointment 💉 Ozempic / GLP-1 before surgery
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Where are you in your recovery?
See how this fits into your surgery journey →
Content last reviewed: July 2026
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Preparation checklist
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