Colon cancer screening tests save lives.
Screening tests help your doctor find polyps or cancer before you even have symptoms. This early detection may prevent polyps from becoming cancer and could jumpstart treatment earlier, when it is most effective.
Though it is usually recommended to start getting screened at age 50, you may need to be screened earlier depending on your family’s health history and risk factors. Check out who should be screened and when.
Download our free Screening Methods Guide.
|Method||What & How||Frequency||Pros||Cons|
|Colonoscopy||Simple and safe procedure in which your doctor uses a long tube with a light and camera to detect polyps||Every 5-10 years depending on whether polyps are found||Views the entire colon. Polyps can be removed if found||Dietary restrictions 1-3 days prior to procedure and prep to clean out the colon is needed|
|Fecal Immunochemical Test|
(FIT or iFOBT)
|Tests for blood. Swab bowel movement and place on card||Annually||No prep. Done at home. Fairly Inexpensive||Accuracy. Need a colonoscopy if blood is detected. Requires 1-2 separate samples|
|Guaiac Fecal Occult Blood Test (FOBT)||Tests for blood. Swab bowel movement and place on card||Annually||No prep. Done at home. Inexpensive||Accuracy, Dietary restrictions, Need a colonoscopy if blood is detected. Requires 3 separate samples|
|Flexible Sigmoidoscopy||Detects polyps. Done at a doctors’ office||Every 5 years, may be combined with annual stool test||No sedation required. Can biopsy if small polyp detected||Only views part of the colon. Need a colonoscopy if larger polyps or other issues are detected|
|Virtual Colonoscopy||Uses x-rays and computers to take 2- or 3-D images of your colon and rectum||Every 5 years||Quicker and less invasive than colonoscopy. No sedation is needed||Expensive and not covered by all insurance carriers, Dietary restrictions 1-3 days before the procedure, full bowel prep is required, If a polyp is found, will need a colonoscopy|
|Stool DNA||Tests for abnormal DNA. Swab bowel movement and to lab||Every 3 years||No prep, no dietary restrictions. Done at home. Greater accuracy than FIT||More expensive than FIT, Need a colonoscopy if results indicate cancerous or precancerous cells|
|Double-Contrast Barium Enema||Air and barium are pumped into your rectum. The solution will show polyps or tumors on X-rays.||Every 5-10 years||Done without sedation. Less expensive than colonoscopy||Laxative preparation is required. Polyps cannot be removed during the procedure. If polyps are found, a colonoscopy will be needed|
Click on the name of each method above to learn more.