IBD and colon cancer: How often do you need screening?
Understand the link between IBD and colon cancer. If you have a certain type of IBD, you'll need more frequent screening.By Mayo Clinic Staff
You may be worried about the connection between inflammatory bowel disease (IBD) and colon cancer if you have IBD, which includes Crohn's disease and ulcerative colitis. It's important to understand that IBD doesn't necessarily lead to colon cancer.
If you have Crohn's disease that affects the lower part of your large intestine (colon), however, this does increase your risk of colon cancer. As a result, you'll need more frequent screening for colon cancer to help diagnose and treat the problem early. In addition, this type of IBD may limit your choices for colon cancer screening.
There are several common colon cancer screening tests — including colonoscopy, virtual colonoscopy (CT colonography), fecal occult blood test and flexible sigmoidoscopy. The best screening test for people with Crohn's disease that affects the lower part of the colon is colonoscopy. This screening test uses a long, flexible and slender tube attached to a video camera and monitor to view your entire colon and rectum. If any suspicious areas are found, your doctor can pass surgical tools through the tube to take tissue samples (biopsies) for analysis.
General colon cancer screening guidelines for people without Crohn's disease call for a colonoscopy every 10 years beginning at age 50. However, depending on how long you've had Crohn's disease and how much of your colon is involved, you may need a colonoscopy as often as every one to two years. Talk to your doctor about the best colon cancer screening schedule for your particular situation.
Sept. 27, 2018
See more In-depth
- Ulcerative colitis. National Institute of Diabetes and Digestive and Kidney Diseases. http://digestive.niddk.nih.gov/ddiseases/pubs/colitis/. Accessed June 16, 2014.
- Ulcerative colitis. The Merck Manual for Health Care Professionals. http://www.merckmanuals.com/professional/print/sec02/ch018/ch018c.html. Accessed June 16, 2014.
- Levin B, et al. Screening and surveillance for the early detection of colorectal cancer and adenomatous polyps, 2008: A joint guideline from the American Cancer Society, the US Multi-Society Task Force on Colorectal Cancer and the American College of Radiology. CA: A Cancer Journal for Clinicians. 2008;58:130.
- Tests to detect colorectal cancer and polyps. National Cancer Institute. http://www.cancer.gov/cancertopics/factsheet/Detection/colorectal-screening. Accessed Sept. 24, 2014.