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

An FOBT is used 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
Rectal cancer
Copyright © Nucleus Medical Media, Inc.

Adenomatous Polyp in Colon
Colon polyp
Copyright © Nucleus Medical Media, Inc.