Arm pain is a common experience with many possible causes. Acute injury, overuse (wear and tear), and underlying conditions ...

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

It's normal and common for your arm to be sore after getting a flu shot. Your symptoms may include pain, swelling, or redness where the shot was given. This happens because of the injection itself ...