Why It Is Done
Colonoscopy is done to:
- Check for colorectal cancer or polyps.
- Reference This test is recommended by the American Cancer Society (ACS), the American College of Gastroenterologists (ACG), the American Gastroenterological Association (AGA), and the U.S. Preventive Services Task Force (USPSTF).
- These groups recommend routine testing for people age 50 and older who have a normal risk for colorectal cancer.
- Your doctor may recommend earlier or more frequent testing if you have a higher risk of colorectal cancer. Talk to your doctor about when you should be tested.
- Check for the cause of blood in the stool or rectal bleeding.
- Check for the cause of dark or black stools.
- Check for the cause of chronic diarrhea.
- Check for the cause of Reference iron deficiency anemia Opens New Window.
- Check for the cause of sudden, unexplained weight loss.
- Check the colon after abnormal results from a Reference CT scan Opens New Window, Reference MRI Opens New Window, virtual colonoscopy, stool test, or Reference barium enema Opens New Window.
- Watch or treat Reference inflammatory bowel disease (IBD) Opens New Window.
- Check for the cause of long-term, unexplained belly pain.
|By:||Reference Healthwise Staff||Last Revised: Reference December 7, 2011|
|Medical Review:||Reference Adam Husney, MD - Family Medicine
Reference Arvydas D. Vanagunas, MD - Gastroenterology
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