What is complex regional pain syndrome?
Complex regional pain syndrome is severe pain that may occur after an injury. It usually affects an arm or a leg, but it can occur in other areas of the body also. In rare cases, the syndrome develops after surgery, heart attack, stroke or other medical problem. Often, the pain is described as a burning feeling and is much worse than expected for the injury. Your doctor may also call this condition reflex sympathetic dystrophy or causalgia. The cause of the syndrome is not known.
Written by familydoctor.org editorial staff