Frozen shoulder (adhesive capsulitis)
Frozen shoulder happens when the tissues around the shoulder joint get thick and tight. This causes pain and stiffness that make certain movements difficult, like reaching behind the back. People over age 40 are more likely to get frozen shoulder, especially women.
Frozen shoulder can also happen if shoulder movement has been restricted for some reason, like a broken arm. It’s also more common in people who have diabetes, Parkinson’s disease and certain thyroid disorders.
Often frozen shoulder gets better on its own. Treatment includes medications like aspirin and ibuprofen, stretching and physical therapy. Steroid shots can speed up the healing process, which can take more than a year. In severe cases, surgery may be needed.