Shoulder Pain
Shoulder pain in a golfer might be caused by any muscle or ligament injury, joint injury, impingement, or joint arthritis.
Symptoms:
Pain in the shoulder or upper arm at various phases of the golf swing, night pain, pain with overhead activities.
Do:
Maintain proper strength and flexibility of the shoulder and scapular muscles (of both shoulders).
Slow down the backswing to reduce stress on the shoulders.
Consider adopting a flatter swing plane to sweep the ball off the turf and reduce the change of shoulder-jolting divots