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Fecal Occult Blood Test
What is it? Overview Usage Side Effects and Warnings

What is Fecal Occult Blood Test?

A fecal occult blood test (FOBT) is a test to detect the presence of blood in the stool (feces).

An FOBT is used mainly as part of the colorectal cancer screening process.

It may also used to detect blood in your stool if you are having abdominal pain, diarrhea, vomiting, decreased appetite, or other symptoms.

Colorectal Cancer
Colorectal Cancer
© 2009 Nucleus Medical Media, Inc.

Adenomatous Polyp in Colon
Adenomatous Polyp in Colon
© 2009 Nucleus Medical Media, Inc.

Call Your Doctor

After the test, call your doctor if any of the following occurs:

  • Development of any new symptoms
  • Worsening of existing symptoms

In case of emergency, CALL 911.