Shoulder bursitis - Definition

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A bursa is a fluid-filled pocket located at the joints whose function is to protect the muscles and tendons and facilitate the movement of bones. When a bursa becomes infected, it is called hygroma or bursitis, the most common is that of the shoulder. Bursitis of the shoulder can be caused by trauma, repeated stress, arthritis caused by inflammation or infection, and is characterized by pain during movement of the affected joint, stiffness, and sometimes swelling. Depending on the cause, rest, cold, immobilization in a splint, or local corticosteroid injections may be considered.