A syndrome consisting of the sub-syndromes reflex sympathetic dystrophy (RSD) and causalgia, also known as CRPS 1 and CRPS 2, or Type I and Type II, and characterized by chronic pain that typically affects a hand or foot (and then later spreads to the whole limb). Complex regional pain syndrome typically develops after an injury, surgery, stroke or heart attack, but the pain is out of proportion to the severity of the initial injury, if any.
