What are the dermatologic manifestations of Crohn disease?

Updated: Jul 26, 2019
  • Author: Leyla J Ghazi, MD; Chief Editor: Praveen K Roy, MD, AGAF  more...
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Although pyoderma gangrenosum is uncommon in Crohn disease, it may occur, even when the disease is in remission: 50% of patients will develop the rash despite quiescent Crohn disease activity. Therefore, medical therapy for the underlying bowel disease is not always successful. Consultation with a dermatologist may be necessary.

Other dermatologic manifestations include the following:

  • Sweet syndrome

  • Orofacial granulomatosis

  • Angular and aphthous stomatitis

  • Acrodermatitis enteropathica

  • Alopecia

  • Metastatic Crohn disease

  • Crohn disease of the vulva and penis

  • Psoriasis

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