Definition: A test for the presence of microscopic amounts of blood in the stool that a person might not be able to see on their own. This is a non-invasive procedure involving chemical testing of a small sample of stool.
Fecal Occult Blood test
By Barbara Bradley Bolen, Ph.D., About.com
Updated August 29, 2009
About.com Health's Disease and Condition content is reviewed by our Medical Review Board
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