The shoulder joint is a ball and socket joint made up of three bones, namely the humerus, scapula, and clavicle. The shoulder is the most flexible joint in the body that enables a wide range of movements including forward flexion, abduction, adduction, external rotation, internal rotation, and 360-degree circumduction. Thus, the shoulder joint is considered the most insecure joint of the body, but the support of ligaments, muscles, and tendons function to provide the required stability. Pain in the shoulder may suggest an injury, which is more common in athletes participating in sports such as swimming, tennis, pitching, and weightlifting. Injuries can also be caused by overuse or repetitive motion of the arms.
Learn more about some of the common conditions affecting your shoulder and its treatment options.