Fasting before surgery is essential for safety. Here are the international standards and why they matter.
Why fast?
To prevent stomach contents entering the lungs during general anaesthesia — a rare but serious complication called aspiration.
Standard rules
No solid food for 6 hours before surgery. Clear fluids (water, black tea, apple juice — no milk) allowed up to 2 hours before.
Children
Slightly different rules — guided by the anaesthetist.
Diabetics
Special instructions on insulin and oral hypoglycaemics.
If you eat by mistake
Inform the team — surgery may be delayed for safety.
Frequently Asked Questions
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fasting before surgery