Low back pain is a common disease in people's work and life. Especially in people who work in a sitting position for a long time, patients with lumbar muscle strain are more common. Lumbar muscle strain is a chronic injury to lumbar muscles, intervertebral discs and ligaments. The reasons can be summarized into three types: first, long-term bad working posture, such as bending over, carrying heavy objects on one shoulder, or habitual bad posture, makes the lumbar muscles in a state of traction for a long time, resulting in cumulative strain degeneration, soft tissue fatigue and back pain; The second type, congenital or acquired lumbar deformity, or lower lumbar shortening deformity, or long-term bedridden after lumbar trauma and long-term fatigue of lumbar muscles; Third, improper treatment Acute lumbar soft tissue injury or repeated injury can not fully repair the tissue, leading to fibrosis or scar formation, which is also the cause of chronic low back pain. China Medical Health Network 1. The main clinical symptoms are lumbosacral pain and recurrent attacks. Pain can change with climate change or fatigue, sometimes light and sometimes heavy, lingering. There may be extensive tenderness in the waist, and there is no abnormality in spinal activity. At the time of acute attack, various symptoms are obviously aggravated, and muscle spasm, scoliosis and limited functional activities may occur. Some patients may have lower limb traction pain, but there is no string pain and skin numbness. The nature of pain is mostly dull pain, which can be confined to a certain part or spread all over the back. 2. Prevention principle People who work in the office for a long time are most likely to suffer from lumbar muscle strain. How to prevent it? This requires you to change your posture frequently at work and correct your bad posture. At ordinary times, it is necessary to strengthen the exercise and protection of back muscles and intervertebral ligaments, and make preparations before exercising or lifting heavy objects to prevent sudden sprain of the waist. You can also take part in Tai Ji Chuan, Wuqinxi and aerobics regularly. These traditional fitness methods are beneficial to prevent lumbar muscle strain. 3. The treatment principle is mainly to reduce the burden, pay attention to rest, medication and physical therapy. (1) General treatment: In the acute stage of low back pain, it is recommended to stay in bed properly to prevent the further development of the disease, and it is advisable to stay in bed with a hard plate. In severe cases, sandbags can be placed on both sides of the waist for braking. (2) Western medicine treatment: painkillers such as ibuprofen, fenbid, indomethacin, etc. It can be taken orally frequently, or sprayed locally quickly, or it can block the pain points of hormones and procaine. (3) Chinese medicine treatment: Chinese patent medicines can be treated with Ginseng Jianpi Pill, Buzhong Yiqi Pill, Shen Qiang Tablet, Duhuo Jisheng Pill and Huoxue Zhitong Capsule. Decoction can be selected from the following empirical formulas: Radix Astragali 10g, Radix Codonopsis 10g, Atractylodis Rhizoma 10g, Radix Angelicae Sinensis 10g, Pericarpium Citri Tangerinae 10g, Radix Bupleuri 10g, Cimicifugae Rhizoma 10g, and Rhizoma Cimicifugae Rhizoma. Safflower 10g, Oletum Trogopterori 10g, Rhizoma Cyperi 10g, Achyranthes bidentata 10g, ground fat 10g and Eupolyphaga Seu Steleophaga 10g. Decoct with water twice a day, each time 150ml. For external use, nanometer acupoint sticking, dog skin ointment, Galla Chinensis Bugan powder and Musk Zhuanggu ointment can be applied to the affected part or acupoint. (4) Physical therapy and functional exercise: The commonly used physical therapy methods mainly include hyperthermia, wax therapy, infrared ray, ultrasonic wave and laser local irradiation. Massage the waist can strengthen the waist and kidney, dredge meridians and prevent lumbar muscle strain. Here are ten ways to prevent and treat lumbar muscle strain by self-massage: put the push hand in the middle of the lumbar spine and rub it 30-50 times from top to bottom until a local heat sensation appears. Sit with your feet stretched out, or bend your knees, or sit up straight. Lift the waist muscles with both hands 15-20 times respectively. Knead and take a sitting position. Put your hands with your fingers together, put them on the left and right sides of your lower back, and slowly rub them up and down with your palms until you get hot. Roll your fists with both hands, roll up and down from the waist and massage. First bottom-up, then top-down, repeated many times. The upper body can be tilted back and forth. Press your hands on your hips, press your thumbs on your waist eyes on both sides, squeeze hard, and rotate and knead, first clockwise, then counterclockwise, 36 times each. Knock with both hands and half fists, and tap the lumbosacral part with the backs of two fists to avoid causing pain. At the same time, knock 30 times each. Grab your hips and hips with both hands, thumb in front, and press on your waist. The other four fingers scratch the skin with their fingertips from both sides of the lumbar spine, from the waist eye to the sacrum, 36 times on each side. Shake your hands on your waist, press the palm root on your waist and eyes, and shake up and down quickly 15-20 times. Press the sitting position and rub the middle point 1-2 minutes with the tip of the middle finger. Click on the seat, and press the acupoints in the center of the legs (the center of the posterior cranial fossa of the knee joint) with the middle finger tips of both hands for 1-2 minutes, and the pressed parts should feel sour, numb and swollen. Besides local massage, shaking the waist can also prevent lumbar muscle strain. Two methods are introduced in detail for reference: ① Turn your hips and stand with your hands akimbo, with your thumb in front and the other four fingers behind. Press the middle finger on the waist and eyes, which are the acupoints of kidney meridian in traditional Chinese medicine. Swing your hips from left to right when inhaling, and from right to left when exhaling. Breathe and inhale once, and do it for 8-32 times continuously. ② Turn your back to a standing position, raise your hands to shoulder width on both sides of your head, with your thumb pointed at the height of your eyebrows and your palms facing each other. When inhaling, the upper body twists from left to right, and the head also twists backwards. When exhaling, twist from right to left, breathe in once, and do it for 8-32 times continuously.