Shoulder instability occurs when the arm’s ball joint moves in and out of the shoulder socket joint. Chronically unstable shoulders can lead to loose shoulder joints that slip out of place repeatedly.

Your acromioclavicular (AC) joint provides stability and motion within your shoulder. When it becomes severely injured, AC joint surgery is one option to help you regain function. The AC joint is ...

People with double-jointed shoulders have unusual levels of flexibility in their shoulder joints. Having double-jointed shoulders may sometimes lead to chronic pain and injuries. “Double-jointed” is ...