Causes of joint pain include: Adult Still disease. Ankylosing spondylitis. Avascular necrosis (osteonecrosis) (The death of bone tissue due to limited blood flow.) Bone cancer. Broken bone. Bursitis (A condition in which small sacs that cushion the bones, tendons and muscles near joints become inflamed.) Complex regional pain syndrome. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.