Unusual growths in the colon s lining called polyps are often benign (noncancerous). Although they can appear anywhere in the gastrointestinal system, the colon is where they most frequently occur. The diameter of them ranges from less than a quarter of an inch to several inches. Some of them are flat, and they resemble little bumps. Your GI physician will examine them. One key way to avoid colorectal cancer is to remove polyps. Using an electrical current and a wire loop via the colonoscope, your GI doctor often eliminates the polyp. You won t feel any pain since you ve been anaesthetised.