This leads to medical problems in the:Blood vesselsBonesMusclesNervesSkinPossible causes of CRPS:Injury directly to a nerveInjury or infection in an arm or legRarely, sudden illnesses such as a heart attack or stroke can cause CSPS. The condition can sometimes appear without obvious injury to the affected limb.This condition is more common in people ages 40 - 60, but it has been seen in younger pe