Your rotator cuff includes several muscles that support range of motion in your arm and shoulder while holding the socket in place. The rotator cuff is a group of four muscles that hold your upper arm ...

What Is a Rotator Cuff? Your rotator cuff is made up of muscles and tendons that keep the ball (head) of your upper arm bone (humerus) in your shoulder socket. It also helps you raise and rotate your ...

For those over 40, it's a common injury with different treatment options to try. Shoulder symptoms led to an average of 9.6 million physician visits in 2015 and 2016 in the United States. The most ...