"Pyoderma" means a skin inflammation (swelling). "Gangrenosum" means skin ulcers with the death of tissue.
Pyoderma gangrenosum is a skin disease in which you get large sores on your skin, usually on your legs.
It happens most often in people ages 25 to 55
Doctors don't know what causes it, but it often happens in people who have another health problem, such as inflammatory bowel disease
Sometimes it happens to skin that's recently been injured
You get small bumps or blisters that become open sores
Treatments include dressings, creams, and medicines
Symptoms of pyoderma gangrenosum include:
Sores from pyoderma gangrenosum can get worse from:
Symptoms can sometimes spread to other areas, such as your belly area, bones, lungs, or muscles.