The Benefits of Regular Colonoscopy Scans for Early Detection Most of the time, a colonoscopy scan is the best way to find colorectal cancer and other problems with the digestive system early on. As part of this regular checkup, doctors use a small camera on a bendable tube to look at the inside of the stomach and rectum. A colonoscopy scan is something that a lot of people are afraid to do. However, regular examinations can help avoid major health...