Complex Regional Pain Syndrome Reflex Sympathetic Dystrophy/Complex Regional Pain Syndrome Complex Regional Pain Syndrome causes of CRPS WebMD Complex Regional Pain Syndrome WebMD individuals between the ages of 20 and 35 Reflex Sympathetic Dystrophy/Complex Regional Pain Syndrome CRPS/RSD individuals between the ages of 20 and 35 Complex Regional Pain Syndrome Complex Regional Pain Syndrome complex regional pain syndrome complex regional pain syndrome Complex Regional Pain Syndrome RSD/ Complex Regional Pain Syndrome