Previously: Reflex Sympathetic Dystrophy

  • Severe burning pain,
  • Pathological changes in bone and skin,
  • Excessive sweating,
  • Tissue swelling, and
  • Extreme sensitivity to touch.
  • The syndrome is a nerve disorder that occurs at the site of an injury (most often to the arms or legs). It occurs especially after injuries from high-velocity impacts such as those from bullets or shrapnel. However, it may occur without apparent injury.
  • One visible sign of CRPS near the site of injury is warm, shiny red skin that later becomes cool and bluish. The pain that patients report is out of proportion to the severity of the injury and gets worse, rather than better, over time. Eventually the joints become stiff from disuse, and the skin, muscles, and bone atrophy.
  • The symptoms of CRPS vary in severity and duration.
  • The cause of CRPS is unknown. The disorder is unique in that it simultaneously affects the nerves, skin, muscles, blood vessels, and bones.
  • CRPS can strike at any age but is more common between the ages of 40 and 60, although the number of CRPS cases among adolescents and young adults is increasing.
  • CRPS is diagnosed primarily through observation of the symptoms. Some physicians use thermography to detect changes in body temperature that are common in CRPS. X-rays may also show changes in the bone.

Source: National Institutes of Health