Pain management health centre. Sciatica (sciatic nerve pain) - Symptoms, causes, diagnosis, treatment. Sciatica is a common type of pain caused by compression or irritation of the sciatic nerve. The sciatic nerve is the longest nerve in the body, going from the pelvis, through the buttocks, down the legs to the feet.
According to the Neuropathy Association, some 20 million Americans suffer from various forms of neuropathy, a potentially serious condition caused in part by blockage of small blood vessels within the nerves in the legs, with diabetes as the most common cause.
Neuropathy is the disease of the nervous system in which there is a disturbance in the function of a nerve or particular group of nerves. The three major forms of nerve damage are: peripheral neuropathy, autonomic neuropathy, and mononeuropathy.