A frozen shoulder, also called adhesive capsulitis, is an inflammatory condition that causes limited, or reduced motion range of motion in the shoulder joint. It can be caused by injury or disease. Pain results in decreased motion in the joint, which then lead to stiffness. Risk factors for frozen shoulder include diabetes, stroke, accidents, lung disease, and heart disease. The condition is uncommon in those under 40 years old, except in impact injuries.

Signs and Symptoms
The shoulder joint becomes painful, then tight and stiffthat is worse at night.

First line treatmetn includes the use of medication to reduce pain and inflammation . Next, joint movement is restored with gentle stretching exercises. Finally, manipulation of the shoulder under general anesthesia may be used, but is rare. Surgery is necessary in some very rare case