This information supports, and does not replace, advice from your healthcare professional.
Overview
Polymyositis is a rare inflammatory disease causing muscle weakness, primarily affecting muscles closest to the trunk.
Symptoms
Gradual muscle weakness in hips, thighs, shoulders, and neck Difficulty climbing stairs, rising from a chair, or lifting objects Muscle pain and tenderness Fatigue
Causes
Autoimmune response causing inflammation of muscles Genetic susceptibility Environmental triggers
Diagnosis
Blood tests for muscle enzymes (CK) Electromyography (EMG) Muscle biopsy
Treatment
Corticosteroids and immunosuppressive medications Physical therapy for muscle strength and flexibility Regular monitoring for complications