Pain in your left arm can have many different causes, from injuries and muscle strain to a pinched nerve or sprain. In some ...
Injury Left arm pain can be caused by an injury such as a bone fracture, bruise, or tendonitis. A broken bone can cause ...
Arm pain can have many causes, but left arm pain particularly can sometimes be a sign of a serious problem with your heart — especially if it's accompanied by chest pain or tightness.