Which findings of the perineal and rectal exams suggest Crohn disease?

Updated: Jul 26, 2019
  • Author: Leyla J Ghazi, MD; Chief Editor: Praveen K Roy, MD, AGAF  more...
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Answer

The perineum should be inspected in all patients who present with signs and symptoms of Crohn disease because abnormalities detectable in this region substantially increase the clinical suspicion of inflammatory bowel disease (IBD). Inspection of the perianal region can reveal skin tags, fistulae, ulcers, abscesses, and scarring. A rectal examination can help to determine sphincter tone and aid in detecting gross abnormalities of the rectal mucosa or the presence of hematochezia.


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