Complex Regional Pain Syndrome
Complex Regional Pain Syndrome is a form of chronic pain that usually occurs in the arm or leg. This pain most commonly occurs after an injury, surgery, stroke, or heart attack, but is far more severe than the initial cause of pain. People who suffer from Complex Regional Pain Syndrome have such severe pain that even touching the affected extremity or having bedsheets rub against it is typically associated with unusually severe pain.
Causalgia is a term used to describe severe burning pain in the hand or foot due to a peripheral nerve injury. Peripheral nerves extend from the central nervous system to the body’s limbs and organs. Causalgia is very similar to “Complex Regional Pain Syndrome,” except that it specifically includes symptoms that relate to peripheral nerve injury.
Ischemic Neuropathy is the severe pain associated with nerve damage due to arterial occlusion (blood clots) or low blood flow to an extremity (arm or leg).
Peripheral Artery Disease
PAD is a circulatory disorder that narrows the arteries, thereby reducing blood flow to the extremities (arms and legs). This condition is most common in the legs because there isn’t enough blood flow to the lower limbs to keep up with the demand. This condition causes severe pain in the legs, especially when walking.