Pain in the right shoulder and arm can occur due to injury ... A shoulder dislocation happens when the top of your humerus pops out of its socket in your shoulder. This occurs often due to ...

Left arm pain can be caused by an injury such as a bone fracture, bruise, or tendonitis. A broken bone can cause significant ...

Pain in your left arm can have many different causes ... There are four muscles that form a cover for the top of the humerus ...