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A member asked:
Can blood on or in stool, from a fissure or hemorrhoid, cause a false positive on the fecal immunochemical test?
A doctor has provided 1 answer
Blood in stool.: Immunochemical stool test is not 100% specific. It can have false positive. However, if your test is positive, the next thing to do is colonoscopy to make sure there is no colon cancer.
Answered 10/16/2013
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