Fecal Occult Blood Tests Index

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A fecal occult blood test (FOBT) is is performed on samples of stool in order to detect occult blood in otherwise normal–colored stool. A fecal occult blood test is primarily done to detect or prevent colon cancer in patients without symptoms such as abdominal pain, rectal bleeding, and changes in bowel habits. There are two types of fecal occult blood tests, chemical and immunologic.