An endoscopy is a procedure used in medicine to look inside the body. The endoscopy procedure uses an endoscope to examine the interior of a hollow organ or cavity of the body. Unlike many other medical imaging techniques, endoscopes are inserted directly into the organ.

A colonoscopy is a test to check inside your bowels. This test can help find what’s causing your bowel symptoms. A long, thin, flexible tube with a small camera inside it is passed into your bottom. You’ll be given a laxative so your bowels are empty for the test.