The most common sign of gallstones is a painful attack that often occurs after a meal. Treatment often involves having the gallbladder removed.

Gastro-Oesophageal Reflux Disease (GORD) is a common condition that causes a burning sensation in the chest or throat (heartburn).

An endoscope allows direct visual examination of the oesophagus, stomach and duodenum (Gastroscopy) or the interior of the bowel (Colonoscopy).