Shoulder pain may develop from an injury or disease that affects one or more of the components that make up your shoulder joint.

Common reasons for shoulder pain include:

Rotator cuff tear

A partial or complete tear of one or more of the tendons that make up your rotator cuff may cause shoulder pain.

Arthritis

Like other joints in your body, your shoulder pain may be arthritis. Types of arthritis that affect the shoulder include osteoarthritis and rheumatoid arthritis.

Fracture

Your shoulder joint has three bones, including the humerus, clavicle, and shoulder blade. A break in one of these bones may cause shoulder discomfort.

Tendonitis or Bursitis

Tendonitis and bursitis are inflammatory conditions that may affect the tendons or bursae in your shoulder.

Instability

Instability of the shoulder occurs when the head of the humerus partially or fully dislocates from the socket joint in the shoulder.

Impingement

Impingement is a type of shoulder pain that develops when the top of the shoulder blade rubs up against the underlying soft tissue.

Adhesive Capsulitis (Frozen Shoulder)

Adhesive capsulitis affects the shoulder capsule, causing it to thicken and stiffen.

Biceps Rupture

A bicep tendon rupture at the shoulder may cause shoulder pain.

Thoracic Outlet Syndrome

The thoracic outlet is the space between your clavicle and first rib. Thoracic outlet syndrome occurs from compression or irritation of the blood vessels or nerves in this space.