A colonoscopy is a medical procedure used to examine the inner lining of the colon and rectum. It involves the use of a long, flexible tube with a camera at the end, called a colonoscope, which is gently inserted through the rectum. This allows the doctor to check for signs of abnormalities such as polyps, inflammation, or early stages of cancer. Colonoscopies are typically recommended for patients over 45 or those with a family history of colorectal issues, as a preventative measure or to investigate symptoms like unexplained pain or changes in bowel habits. The procedure is generally safe and well-tolerated, offering critical insights into your digestive health.