Inflammation of the shoulder’s large bursa, known as shoulder bursitis, can have many underlying causes, ranging from poor posture to a rotator cuff tear. Even a poorly placed vaccination injection can trigger shoulder bursitis.
The symptoms of shoulder bursitis can range from localized pain and tenderness at the shoulder to radiating pain and muscle weakness.
A bursa is a tiny, slippery sac of fluid that provides a cushion and reduces friction between the surfaces of a bone and soft tissue. When a bursa becomes inflamed it is called bursitis.
Learn what bursitis is, how it develops, and its typical symptoms. Also learn how a bursa can get infected, causing a condition called septic bursitis. Many types of doctors can treat bursitis.