How is complex regional pain syndrome (CRPS) distinguished from chronic or phantom limb pain? Can something as simple as a fracture or blood drawing trigger this condition? Dr. Anne-Louise Oaklander, associate professor of neurology at Harvard Medical School, joins host Dr. Michael Greenberg to discuss the intricacies of neuropathic pain. Since CRPS is rare, at what point should a physician suspect CRPS, and can this condition be treated?