Shoulder pain can stem from one or more of the following causes: 1  Strains from overexertion. 2  Tendonitis from overuse. 3  Shoulder joint instability. 4  Dislocation. Collar or upper arm bone fractures.  Frozen 1  shoulder. Pinched nerves (also called radiculopathy)
Joint pain can affect one or more joints. Joint pain can be caused by many types of injuries or conditions. It may be linked to arthritis, bursitis, and muscle pain. No matter what causes it, joint pain can be very bothersome. Some things that can cause joint pain are: Autoimmune diseases such as rheumatoid arthritis and lupus.
While there are many causes, joint pain is often a result of arthritis, an umbrella term that includes more than 100 conditions that cause joint pain, stiffness, and inflammation. Often in young, active guys, arthritis is a result of a sports injury, like a dislocated joint or a torn ligament, suffered earlier in life.