What is genital Crohn disease?

Crohn disease is an inflammatory bowel disease; patients develop granulomas and ulcers in the bowel. Genital Crohn disease describes the skin condition that arises when granulomas affect the genitals and adjacent skin. The skin disease can join up with the bowel disease or be completely separate (in this case it is called metastatic Crohn disease).

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Source: dermnetnz.org