A thin, flexible tube with a camera is passed through the mouth to examine the upper digestive tract. It shows what a scan cannot: the surface of the lining itself, inflammation, ulceration and narrowing. It also allows small tissue samples to be taken and examined.
It is usually recommended when symptoms have persisted, have not responded to treatment, or include features that warrant a definite answer rather than a trial of medication. Some conditions found during the examination can also be treated during it.
Why it might be recommended
- Heartburn or reflux that has not settled on treatment
- Difficulty or pain on swallowing
- Persistent upper abdominal pain
- Unexplained anaemia or suspected bleeding
- Unintended weight loss alongside digestive symptoms
- Confirming or excluding H. pylori and ulcer disease
What to expect on the day
- Nothing to eat for several hours beforehand, so the stomach is empty
- Sedation or a throat spray is generally offered
- Usually carried out as a day case procedure
- If sedation is used, arrange for someone to accompany you home
- Your clinic will confirm the specific preparation for your appointment
This page describes the procedure in general. The preparation for your own appointment is confirmed by the clinic, because it depends on what is being looked for and on your own medical history.