Polymyositis | Genetic and Rare Diseases Information
Sep 25, 2017 · The exact cause of polymyositis is unknown. The disease shares many characteristics with autoimmune disorders, which occur when the immune system mistakenly attacks healthy body tissues. In some cases, the disease may be associated with viral infections, connective tissue disorders, or an increased risk for malignancies (cancer).
DA: 73 PA: 46 MOZ Rank: 57