A colonoscopy is a telescopic and visual examination of the colon and rectum. It helps doctors detect abnormalities in the bowel, including signs of colorectal cancer. More than 15 million colonoscopy ...

Colonoscopy procedure A colonoscopy is an important procedure for detecting colorectal cancer in those at high risk or over the age of 50. A colonoscopy usually takes 30–60 minutes. However, people ...