What is Dermatomyositis?

Dermatomyositis is a noninfectious inflammation of muscle tissue and skin.

Dermatomyositis and its sister disease, polymyositis , belong to a large category of connective tissue disorders that include lupus erythematosus , rheumatoid arthritis , and scleroderma (systemic sclerosis).

They are all believed to represent “autoimmune disorders,” where the body launches an attack against its own tissue. These chronic, progressive conditions lead to tissue destruction. They are potentially serious conditions that require care from your doctor. The sooner these disorders are treated, the more favorable the outcome. If you suspect you have dermatomyositis, contact your doctor immediately.