Shoulder injuries and different types of arthritis may cause acromioclavicular (AC) joint pain. The AC joint in the shoulder connects the collarbone to part of the shoulder blade. One of the AC ...
Youre at the gym doing your thing when you suddenly feel a sharp pain in your shoulder after an overhead press. Youre not sure what just happened, but you know it didnt feel good. The AC joint is ...
Sudden shoulder pain can occur with an injury, but it can also appear for other reasons, including arthritis, bursitis, and pneumonia. Sudden shoulder pain without an apparent injury can result from ...