Swimmer's shoulder is a common orthopedic injury in people who swim. It is caused by abnormal rubbing and pinching of the structures in your shoulder. This injury is experienced by about 40% to 90% of swimmers at one time or another.1
It is also known as rotator cuff impingement syndrome, and it may cause pain and irritation of your shoulder's rotator cuff tendons and the bursa (fluid-filled sac) that resides in your shoulder.
