Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Myositis
Medically reviewed by Min Clinic Staff | Updated: January 2026
Myositis: Inflammation of muscle tissue. There are many causes of myositis, including injury, medications, and diseases, such as dermatomyositis. Myositis may require no treatment, stopping medications, or treatment of an underlying disease, if present.