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A 37-year-old member asked:

Is there a dna test to check for colon cancer?

2 doctor answers7 doctors weighed in
Dr. Dan Fisher
Internal Medicine 27 years experience
Yes, BUT.: There are commercial tests available. They are not more effective than other methods of screening ( fecal occult blood and colonoscopy) and are not as cost effective.
Dr. Prashant Sinha
General Surgery 19 years experience
Yes and no: Most colon cancers occur from random dna mutations. Most of these are fixed by your body's immune system. Some families will have an inherited gene that makes colon cancer more likely. In these families colon cancer affects multiple family members or at an early age. Unless there is any evidence of inherited genes there is no good reason to check for them. Colonoscopy starting age 50 is best.

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Last updated Oct 5, 2012
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