Complex regional pain syndrome (CRPS/Causalgia) is a syndrome that usually develops due to an injury or illness that disrupts the normal function of the peripheral and central nervous systems. Complex regional pain syndrome can be associated with loss of motor and sensory function. The pain experienced by patients with this syndrome is significantly more extreme than the severity of the injury or circumstance that caused it. The symptoms are localized in one region of the body; however, they may gradually progress to other body areas. This condition is also called reflex sympathetic dystrophy or causalgia.

Complex regional pain syndrome is thought to be the result of disproportional responses in the central and peripheral nervous system as a result of tissue damage. It is characterized as chronic pain, skin abnormalities, muscular atrophy, and other symptoms.

Treatments that may manage complex regional pain syndrome include some medications, biofeedback training, or spinal cord stimulation. A discussion with your pain specialist about the nature of your pain and other symptoms will result in the best possible treatment plan for you.