Adhesive capsulitis, commonly known as frozen shoulder, is a condition characterized by pain and stiffness in the shoulder joint. It occurs when the connective tissue surrounding the shoulder joint, called the shoulder capsule, becomes inflamed and thickened. This leads to a gradual loss of range of motion in the shoulder, making everyday movements challenging and painful. The condition typically develops slowly and progresses through different stages, starting with increasing pain and restricted motion in the “freezing” stage, followed by extreme stiffness in the “frozen” stage, and gradually improving movement and reduced pain in the “thawing” stage. Adhesive capsulitis can be caused by injury, shoulder immobilization, or certain medical conditions like diabetes.