You stretch your arm to grab something and feel a stabbing pain in your shoulder. You also have trouble raising the hand or feel it has become weak. If these sound familiar, rotator cuff injuries or inflammation may be to blame.
The rotator cuff is a bunch of muscles and tendons – the strong chords that attach your muscles to bones – that encircle your shoulder joint. Your rotator cuff holds your shoulder joint in the proper position and enables it to move. Overuse of the shoulder, injury, or even aging-related degeneration can result in inflammation and irritation of tendons. The pain that follows may make it difficult to do simple things which involve raising your arm above shoulder level – like brushing your hair or putting on a t-shirt.