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gastroscopyGastroscopy is a procedure that lets doctors see inside your stomach and small bowel.

In a gastroscopy, a small, flexible tube is passed into your mouth, down your throat and oesophagus (food pipe) and into your stomach and small bowel.

The tube (called an endoscope) is about the width of a little finger. It has a tiny video camera at the end, which allows doctors to see inside your oesophagus, stomach and the first part of your small bowel. The doctor can also take small samples of tissue if necessary.

A gastroscopy is done in hospital, but you can usually go home the same day. You don't need to have a general anaesthetic, but you can have a sedative to help you relax and reduce discomfort.

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Written by HealthInfo clinical advisers. Last reviewed August 2020.

See also:

Colonoscopy & sigmoidoscopy if you have diabetes

Having an anaesthetic

Page reference: 20306

Review key: HIGAS-20306