A colonoscopy is a medical procedure performed to inspect the inside of the rectum and colon (large intestine). During a colonoscopy, a healthcare provider inserts a flexible tube with a camera ...

Colonoscopy vs. Sigmoidoscopy: What’s the Difference? If your doctor wants to check the health of your colon — whether as part of a routine screening or to investigate a concern — they may recommend a ...

Most people should get screened for colorectal cancer starting at age 45. Cells in the large intestine can form polyps, which may turn into cancer over time. Detecting these polyps early means you ...