An orthopedic (musculoskeletal) doctor who specializes in sports medicine diagnoses and treats injuries sustained while playing sports, as well as other types of orthopedic injuries.   Seeing a sports medicine doctor can be beneficial if you've been injured while playing sports, exercising, tripping over your kid's toys, or engaging in any physical activity. There are more than just athletes who need sports doctors, despite the name.   The specialty of sports medicine encompasses the prevention, diagnosis, and treatment of injuries sustained by physical activity, such as osteoarthritis and tendonitis, as well as sports injuries.