Is a 5 mm polyp big? If the colonoscopy finds one or two small polyps (5 mm in diameter or smaller), you are considered at relatively low risk. ... If the polyps are larger (10 mm or larger), more numerous, or abnormal in appearance under a microscope, you may have to return in three years., You can Find A Cancer Hospital Please Join Here, Please join All Cancer Treatment Centers, Be sure to consult your doctor, Health Guide
