A colonoscopy is a gastrointestinal (GI) screening that is used to evaluate a patient for colorectal cancer. It is recommended that adults begin regular colorectal cancer screening at age 40, although earlier screening may be recommended for individuals that are at high risk for the disease. If your doctor has recommended a colonoscopy, it is for either screening or diagnostic purposes, especially if you are showing symptoms such as abdominal pain, rectal bleeding, changes in bowel habits, or ... [Read More]