The risk of developing colorectal cancer begins to increase after the age of 40 and rises sharply over the age of 50. All persons who do not have a history of colorectal cancer, a previous history of colon cancer, or any other malignancy, and who have no symptoms should take the test. All persons in high-risk categories for colorectal cancer should make an appointment with their physician for a colonoscopy. These include:
NOTE: Persons with ulcerative colitis and Crohn's Disease are at an increased risk of developing colorectal cancer. However, different screening methods should be used.