Steroid myopathy

In 1932, Chushing first observed that corticosteroids can cause muscle atrophy and muscle weakness, and proposed the concept of steroid myopathy. This disease is also known as corticosteroid polymyopathy. Because steroid hormones are widely used clinically, steroid myopathy is not uncommon. Steroid myopathy can be divided into two types, acute and chronic. Chronic steroid myopathy is more common and its onset is insidious. The main manifestation is pelvic muscle weakness, which gradually progresses, affecting the scapular muscle and the proximal muscles of the extremities. Subjective muscle weakness symptoms are often heavier than objective muscle strength tests. Myalgia is common and disappears after steroid reduction, suggesting that myalgia is one of the symptoms of steroid myopathy.