Where Is This Shoulder Pain Coming From?

When people say, “My shoulder hurts,” they often point to different areas in the vicinity of the shoulder such as the base of neck, the collar bone, the scapula (shoulder blade), the chest, and/or their arm. The challenge with the shoulder is that it’s anatomically comprised of three joints: the glenohumeral joint, or GHJ (ball-and-socket); the acromioclavicular joint, or ACJ (collar bone and scapula); and the scapulothoracic joint, or STJ (shoulder blade and rib cage). Some researchers even argue that the sternoclavicular joint, or SCJ (collar bone and sternum), should also be considered part of the shoulder.
From a musculoskeletal…
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