Pyoderma gangrenosum

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Risk factors

By Mayo Clinic staff

Pyoderma gangrenosum is most common in people in their 40s and 50s but can occur at any age. It's also associated with the following conditions:

  • Ulcerative colitis. This disease of the large intestine causes chronic inflammation of your large intestine.
  • Crohn's disease. Like ulcerative colitis, Crohn's disease causes long-term inflammation in the intestine but can occur anywhere along your digestive tract.
  • Rheumatoid arthritis. Rheumatoid arthritis refers to a condition in which the thin membranes surrounding your joints become irritated and inflamed.
  • Hepatitis. This condition causes your liver to become inflamed. The cause of hepatitis may be a virus or a disorder of your immune system.

DS00723

June 12, 2008

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