Complex regional pain syndrome (CRPS), also called reflex sympathetic dystrophy syndrome, is a chronic pain condition in which high levels of nerve impulses are sent to an affected site. Experts believe that CRPS occurs as a result of dysfunction in the central or peripheral nervous systems.
CRPS is most common in people ages 20-35. The syndrome also can occur in children; it affects women more often than men.
There is no cure for CRPS.