Orthopedic doctors treat musculoskeletal problems. They often work with injuries like broken bones, torn ligaments, etc. Orthopedists can also treat chronic issues in the hips, back, and neck, as well as treat arthritis. You’re the most likely to see an orthopedist if you’ve sustained an injury. Some injuries will heal on their own, but injuries that cause serious pain and greatly decreased mobility should be looked at by an orthopedist.