Rotator cuff tears
The rotator cuff is a group of muscles that keep the upper arm bone in the shoulder socket. Tears can be caused by aging, injury and sports. Injuries are common in people who do repetitive overhead arm motions, like painters or baseball players.
Symptoms include arm pain and weakness. You may also notice a crackling feeling when the shoulder is moved. Treatment includes rest, medication and strengthening exercises. Steroid shots and wearing an arm sling may also help.
Rotator cuff tears don’t heal on their own and can become larger and more serious over time. Because of this, surgery is advised for people who are physically active.