Your shoulder is one of the busiest intersections in your body: three bones form one main joint cushioned by cartilage and held in place with cords of muscles, ligaments, and tendons. When everything works as one, you have the mobility and stability to lift, throw, flex, and reach. Injure one of these separate parts, however, and you can be sidelined with searing pain, not to mention a severely compromised range of motion, says Guillem Gonzalez-Lomas, M.D., sports medicine physician at NYU Langone Medical Center in New York City. Get insight into why your shoulder hurts, plus how to end the pain and regain your mobility, with this cheat sheet of 10 common shoulder injuries.
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