What is Inflammatory Myopathy?

Inflammatory myopathies are a group of rare autoimmune diseases primarily caused by the immune system mistakenly attacking muscle tissues, leading to inflammation, muscle damage, and dysfunction. The main types include polymyositis, dermatomyositis, and inclusion body myositis. These diseases can affect target organs such as the skin, lungs, and muscles, and present with complex and diverse clinical manifestations, including muscle weakness and pain, skin lesions, and joint pain. The exact causes are not fully understood but may involve genetic, environmental, and immune system abnormalities. Treatment typically involves medications such as glucocorticoids and immunosuppressants, as well as comprehensive measures including rehabilitation therapy and nutritional support.