When is fecal occult blood testing indicated in the workup of constipation?

Updated: Mar 30, 2020
  • Author: Marc D Basson, MD, PhD, MBA, FACS; Chief Editor: BS Anand, MD  more...
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Although the effectiveness of fecal occult blood testing has been hotly debated, performing such a test after a rectal examination in patients older than 50 years is probably worthwhile. The presence of blood in the stool warrants further evaluation. Never assume that the patient is bleeding from hemorrhoids or fissures until other sources of bleeding have been ruled out.

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