Patients with sciatic nerve pain may experience several symptoms. This kind of pain is very characteristic, first of all, there are obvious fixed points of pain in the area where the sciatic nerve is stimulated. Generally, there will be an obvious pressure point in the posterior lateral part of the buttock or the root of the posterior thigh, and when touching the pressure point, the patient will often feel the pain rapidly intensify, and there is a discharge to the lower limbs like the sensation. In addition, the patient in the usual buttock cold or pressure, will also produce this kind of discharge like feeling. 2, there will be obvious limitation of activities. During the attack of sciatica, patients are afraid to go down to weight-bearing activities due to the severe pain. In addition, it will also be shown to the opposite side of the side lying, that is, the side without the onset of side lying, and the onset of this side of the lower limbs will be curled up. Because the straightening activity will induce severe pain. 3, there may be lower limb muscle atrophy. Often seen in patients with long-term morbidity. 4, there may be abnormal appearance, such as the patient to one side for a long time to take a protective posture, may cause one side of the lower limbs shortening, or produce postural scoliosis.