Endoscopy involves swallowing a thin, flexible tube to examine the upper gastrointestinal tract: the oesophagus (gullet), stomach and duodenum.
Colonoscopy is a procedure used to see inside the large bowel (colon). This allows direct inspection of the lining of the bowel and gives important information about the possible cause of your symptoms...
Capsule Endoscopy enables your doctor to examine the small intestine. Your doctor will use a vitamin-pill sized video capsule that has its own camera and light source.