a condition affecting your upper arm may be felt around your shoulder. Problems with the rotator cuff are a common cause of this type of pain. Many of these issues are also the cause of left ...

"My shoulder pain wakes me up if I roll over on that side during the night." Those are two of the most common statements made by tennis players complaining of shoulder and upper arm pain.

Myofascial pain syndrome ... you use your upper trapezius muscle. (The upper section of the trapezius muscle is located on the back of the neck and top of the shoulder.) The trapezius muscle ...