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 ...

Brachial plexus injury, affecting nerves controlling the arm, can cause severe pain, numbness, weakness, or paralysis. Early ...

There are many factors involved in safely and comfortably raising an arm overhead, so Worthington prefers to think of shoulder pain more broadly as an "overhead range of motion" issue rather than ...