Shoulder joints can have their fair share of problems. Learn about common problems and injuries, and tips on how to treat a painful shoulder.

There are two primary joints in the shoulder: the glenohumeral joint and the acromioclavicular joint. Within and around the joints is a group of muscles known as the rotator cuff tendons.

The shoulder plays a crucial role in many functions, including lifting, rotating, and moving the arm. Learn about shoulder anatomy and possible injuries here.

The major anatomical landmarks of the shoulder include the clavicle, the acromion, the acromioclavicular joint, the humerus, the subacromial space, the rotator cuff (including the supraspinatus ...

AC joint injury in a bull rider, for example, might be an incident in which the bull rider lands on the shoulder, separating the AC joint and tearing the ligaments of the acromioclavicular joint.

Your humerus is the long bone in your upper arm that's located between your elbow and shoulder. A fracture is one of the most common injuries to the humerus.