Gastroscopy
A gastroscopy is a procedure where a thin, flexible tube called an endoscope is used to look inside the oesophagus (gullet), stomach and first part of the small intestine (duodenum).
A gastroscopy can be used to check symptoms or confirm a diagnosis, or it can be used to treat a condition.
Instructions about how to prepare for a gastroscopy should be included with your appointment letter. Phone the hospital if there's anything you're unsure about.
Read about the main risks associated with having a gastroscopy, including the risks of sedation and internal bleeding.