Body 8 signals, may be lumbar disc herniation: 1, acute sprain, whether there is a limp, such as a hand to support the waist or the affected side of the lower limbs for fear of weight-bearing and was a hopping gait, or habitual body leaning forward and the hip convex to the side of the posture; 2, lumbar spine because of attempts to avoid the pain to the side of the bending, bending can be relieved to a certain degree of pain; 3, the pain whether the pain is manifested as when sitting up, standing or walking Is the pain aggravated when sitting up, standing, or walking, and relieved when lying down? Whether the symptoms of lumbar pain are aggravated when coughing, defecating or laughing, or whether there is leg pain or numbness in the legs; 5. If the pain is not relieved after resting in the supine position, try to find out whether it is relieved when lying on the side, bending the waist, flexing the hips or bending the knees; 6. If lying in the prone position, press on the lumbar vertebrae at the middle and both sides, and find out whether there is any obvious pressure and pain. 7, supine position, and then sit up, observe whether the lower limb on the affected side can be flexed by the knee joint due to pain; 8, supine position, straighten the knee joint on the affected side, and elevate the affected limb, observe whether its height is limited due to pain.