Colonoscopy

A colonoscopy is a medical procedure that is done to look for cancer, colon polyps or other abnormalities inside your large bowel (colon).

Colonoscopy is done using an instrument called a colonoscope (a type of endoscope) — a long, thin, flexible tube containing a camera and a light. When inserted into the rectum and gently pushed along the colon, it allows the doctor to see the lining of the whole large bowel. A tool can also be used during a colonoscopy to take samples (biopsies) or remove abnormal tissue such as polyps.

A good quality colonoscopy can only be achieved if the bowel is thoroughly cleaned and emptied of all solid matter (Bowel Preparation). A good bowel preparation allows Dr Prichard to clearly see the lining of the bowel and thoroughly examine the colon. The procedure is then more likely to be accurate and complete.