Camera examination of the colon for polyp and cancer screening.
Colonoscopy examines the colon and rectum with a flexible camera. It is used for early diagnosis of polyps, inflammatory bowel disease and cancer; detected polyps can be removed in the same session. It is the gold standard for colorectal cancer screening.
Usually started at 45-50; earlier if at risk.
No, polyp removal is painless and done in the same session.