Sciatica is a radiating pain along the distribution area of the sciatic nerve, mainly in the buttock, posterior thigh, posterior lateral calf, and lateral dorsal foot. The onset of sciatica is acute, with the first feeling of lower back pain and lumbar stiffness, or a few weeks before the onset of the disease, there is a brief pain in the lower extremities when walking and exercising, and then gradually worsens. The pain starts from the lower back, buttocks or hip, and spreads down the back of the thigh, N fossa, outer calf and dorsum of the foot, with a burst of increasing burning or pins-and-needles pain on the basis of persistent pain. 1. pressure points along the sciatic nerve distribution area such as parasternal, iliac, gluteal, fibular and ankle points, etc. 2. Positive sciatic nerve involvement signs, such as Kernig’s sign, Laseque’s sign, Bonnet’s sign, etc. 3.Sciatic nerve innervation range, there are different degrees of motor, sensory, reflex and vegetative nerve dysfunction, resulting in weak dorsiflexion of the affected toes, hyperalgesia of the lateral calf skin, loss of Achilles tendon reflex, reduced hip muscle tone, etc. Third, how to exercise 1, patients with sciatica often reduce activities because of fear of pain, which is not conducive to the treatment of the disease, patients should follow the principle of “within the limits of their ability, moderate exercise” to exercise, especially the exercise of the affected lower limb is more necessary, slow walking, jogging, ball games can be carried out, special gymnastics More beneficial. 2, prone gymnastics: the patient supine, alternately bend the leg, and then take turns to straighten the two legs, and then alternately lift the leg upwards, at the beginning, the affected lower limb up angle can be less than the healthy lower limb, after continuous exercise, the affected lower limb can gradually increase the angle of elevation. 3, sitting gymnastics: patients sitting on the edge of the bed or chair, legs hanging down, the foot followed the ground, the tip of the foot up, hands flat on the legs, sit well and gradually bend forward, hands pushed to the foot, the initial practice hands may only be able to reach the calf, adhere to the exercise can reach the back of the foot and the tip of the foot. 4, standing gymnastics: patients stand with their arms crossed, first take turns lifting straight legs forward, then try to separate the legs to stand, take turns bending the knee joint, so that the body is bowed squat, at this time can make no flexion of the lower limbs of the knee joint is traction and stretch.