A colonoscopy is a medical procedure that involves the examination of the colon and rectum using a long, flexible tube with a camera at its end called a colonoscope. It is a common diagnostic and preventive screening tool for various colorectal conditions, including colorectal cancer. https://login.aol.com/myaccount/personalinfo/?.done=https%3A%2F%2Fwww.aol.com%2F&pspid=160500005&activity=ybar-acctinfo&.scrumb=OXH5EjZlO8t