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A gastroscopy is a procedure done under anaesthetic that allows a doctor to examine the lining of the upper gastrointestinal tract. The doctor will use a gastroscope, a small, flexible fiberoptic instrument, to pass through the mouth to allow a direct visual inspection of the oesophagus, stomach and duodenum (small bowel).

A gastroscope can also be used to take a biopsy, a very small section of the lining of the gastrointestinal tract, which can be tested to identify a range of conditions. All patients will receive a procedure report on the day and have a brief discussion with the gastroenterologist. If biopsies are taken, results can either be followed up with your GP or with the gastroenterologist, depending on which is most clinically appropriate.