human
My doctor says that I need to get a colonoscopy. What does that mean and how often do I need to do it?
assistant
A colonoscopy is an exam of the large intestine using a thin, flexible tube called a colonoscope. It is used to detect and remove polyps, which are small growths on the inner lining of the colon. Polyps can become cancerous if left untreated, so they should be removed as soon as possible. Colonoscopies are recommended every 10 years for people over 50, or every 5-10 years for those between the ages of 50-75.