Shoulder Pain

The shoulder joint comprises three bones called the scapula (shoulder bone), the clavicle (collar bone) and the humerus (upper arm bone) and four joints. The glenohumeral joint is the main shoulder joint where the ball of the humerus slots into the socket of the scapula. The Acromioclavicular joint sits at the top of the shoulder and is formed between acromion (upper end of the scapular).

There are many things that cause you to experience shoulder pain. Chronic shoulder pain can be caused by:

• A ruptured (torn) tendon or ligament
• Impingement (the tendon in the shoulder rubs on bone or other nearby tissue)
• Tendinitis
• Bursitis (painful, inflamed fluid filled sac)
• Dislocated or shoulder instability
• Osteoarthritis
• Arthritis