Myositis
Myositis is a group of rare autoimmune disorders characterized by inflammation of the muscles, leading to muscle weakness, pain, and fatigue. It commonly affects muscles responsible for movement, especially those of the shoulders, hips, neck, and thighs. Some forms of myositis may also involve the skin, lungs, heart, or digestive system. Early diagnosis and appropriate treatment are essential to preserve muscle strength and prevent long-term disability.