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familial adenomatous polyposis (fap)

familial adenomatous polyposis (fap) is an inherited condition in which numerous polyps (growths that protrude from mucous membranes) form on the inside walls of the colon and rectum. having fap makes it very likely that a person will get colorectal cancer.

people with fap can develop polyps in their 20s and 30s or even earlier. they may have hundreds of polyps throughout the colon by their 30s. surgery to remove the colon (colectomy) is usually the recommended treatment.

the gene mutation that causes fap can be detected by a genetic screening test. if the test result is positive, immediate family members should also be screened. yearly screening may need to begin as early as age 10.

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this information does not replace the advice of a doctor. healthwise, incorporated, disclaims any warranty or liability for your use of this information. your use of this information means that you agree to the terms of use and privacy policy. to learn more about healthwise, visit healthwise.org. © 1995-2022 healthwise, incorporated. healthwise, healthwise for every health decision, and the healthwise logo are trademarks of healthwise, incorporated.

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