1, pay attention to the lumbar region to keep warm. 2, master the correct sitting, lying, standing, walking and posture to reduce the chance of acute and chronic injury. When sitting, chest up, abdomen in, chair should have armrests and backrest to provide sufficient support for the waist and back, so that the knees are slightly higher than the hips; when standing, chest up, abdomen in, feet level with the shoulders, do not rotate the waist, maintain the “neutral position” of the crest, so that the crest physiological bend; when lying on the back, a soft pillow can be placed under both knees; 3, early (within one month) self-turning 4. Keep your hands on your waist to protect your waist and reduce the pressure on the lumbar discs; try to keep your waist and back straight when picking things, bend your knees in a squat instead of bending your waist, and keep objects as close to your body as possible; use a low stool to get objects from high places, do not stand on your feet to get things; have preparatory activities first to avoid Waist and back overstretch, do not turn sharply, squatting, sudden rise and other actions. The purpose of low back exercise is to strengthen the muscles of the low back to enhance the stability of the crest. If only with the waist circumference and not exercise low back muscle, but will make the muscle and joint mobility decline, resulting in muscle disuse atrophy, the removal of the waist circumference may form a new injury; for long-term sitting workers, pay attention to the height of the table, chair to appropriate, and should regularly change the posture, pay attention to rest, so as to avoid excessive fatigue. For workers who need to bend over frequently at work, they should regularly stretch their waist and chest, and use wide belts to protect their waist. 5, the vast majority of patients can get out of bed three days after surgery (to go to the bathroom, etc.), but it is still appropriate to recuperate a little more in bed within 1 month. At the same time, straight leg elevation and lumbar back muscle functional exercise in bed to facilitate tissue healing and prevent internal fixation from loosening and breaking nails, etc. Functional exercise can reduce nerve root adhesions and strengthen lumbar back muscle strength. 6, three months generally do not perform physical labor and strenuous activities, generally do not bend back and carry heavy objects.