Reflex Sympathetic Dystrophy (RSD) is a combination of symptoms including pain, tenderness, and swelling in the limbs, and it is often accompanied with profuse sweating and skin warmth/coolness, flushing, and discoloration. Also known as Complex Regional Pain Syndrome, Reflex Sympathetic Dystrophy is not a well-known condition of the sympathetic nervous system. The pain caused by RSD can become chronic and may be a prolonged feeling that is very uncomfortable depending on the severity of nerve damage caused from the injury. The pain from RSD has been described as a burning or stabbing pain in the affected limbs that may spread the entire leg or arm. Other symptoms of Reflex Sympathetic Dystrophy include shiny or thin-looking skin with increased sensitivity to the area, abnormal sweating patterns, increased nail and hair growth patterns, stiff joints, and coordination issues.