becomes detached from the humerus (upper arm bone) bone's head and can't heal itself without surgical help. The supraspinatus tendon is the most common to tear, but any of the four tendons may tear.

Soft tissue injuries can cause many kinds of pain, including: The rotator cuff is a group of four tendons that hold your upper arm (humerus) into your shoulder blade. A rotator cuff tear can be ...