What is a colonoscopy? Colonoscopy is a procedure that enables your surgeon to examine the lining of the colon and rectum. It is usually done in the hospital or an endoscopic procedure room on an outpatient basis. A soft, bendable tube about the thickness of the index finger is gently inserted into the anus and advanced into the rectum and the colon. Why is a colonoscopy performed?

A colonoscopy is usually done: as part of a routine screening for cancer, in patients with known polyps or previous polyp removal, before or after some surgeries,  to evaluate a change in bowel habits or bleeding or, to evaluate changes in the lining of the colon known as inflammatory disorders. What preparation is required? The rectum and colon must be completely emptied of stool for the procedure to be performed. In general, preparation consists of consumption of a special cleansing solution or several days…