| Definition: | | Causalgia is a type of reflex sympathetic dystrophy. It is characterized by a painful and burning sensation along the distribution of the nerves. There are trophic changes of the skin and nails in the same area supplied by the nerves. Causalgia begins in the first week after partial injuries of the affected nerves. Brachial plexus, median, or sciatic nerves are often the case. |