Many people have experienced symptoms of low back pain. One type of low back pain is the most common and is centered in the lumbosacral region, about a palm-sized area. The symptoms are sometimes mild, often recurrent, light at rest, aggravated by exertion, and reduced by changing position. Low back pain is often related to weather changes, preferring warmth to cold, and the pain is aggravated by rainy weather and humid environment or by wind and cold; low back pain persists and does not heal, and the symptoms of low back are good after a little activity; the functional range of motion of low back is still possible, and some patients have stagnant lumbar muscles on one side or both sides to touch, with local pressure pain, and cannot sit for a long time; blood tests and X-rays are mostly normal in hospitals, and osteophytes and osteoporosis are occasionally seen. Occasionally, osteophytes and osteoporosis are seen. A few patients may have congenital mutations in the lumbosacral region (such as lumbar or sacral spinal fractures). Although most of the patients with this symptom can still live and work normally, it will affect the work efficiency and reduce the interest of life after a long time. This kind of lumbago is often called kidney deficiency lumbago in Chinese medicine, which is also known as lumbago with lumbar muscle strain. Why does lumbago from lumbar muscle strain occur? The lumbar region is the part of the spine that moves more, is the pivot of the human trunk, plays a big role in the whole body’s weight and balance, and has become one of the most active parts of daily life and labor, while the lumbosacral joint is the only large joint in the human body that bears the body’s gravity, and is involved in forward bending, backward bending, sideways bending, and turning activities. The joint activity is more when the labor intensity is high or the activity is high. The activities of the joints all rely on muscle involvement, so the muscles here are prone to fatigue and injury, which can lead to pain. Some people, even if they are not physically active and labor-intensive, are in a half-bent spine due to incorrect posture (e.g., the body is not sitting properly for a long time), and the muscles in the lumbar region are always tense, which can lead to strain over time and further develop into a sterile inflammation that stimulates the nerves and causes lumbago. The difference between lumbar muscle strain and lumbar disc herniation: lumbar muscle strain is a chronic injury to the soft tissues of the lumbar region, while lumbar disc herniation is a symptom caused by compression of the nerves. The easiest way to identify these two diseases is that the former pain is confined to the lumbar region, while the latter will have radiating pain in the lower extremities. However, long-term lumbar muscle strain can lead to lumbar disc herniation and lower limb pain. In addition, lumbar muscle strain feels comfortable locally with gentle hand tapping and there is no obvious pain sensation, while lumbar disc herniation will have lower limb radiating pain with hand tapping, and even lumbar leg pain will occur when the patient coughs and sneezes. Prevention of lumbar muscle strain: 1, strengthen the lumbar back muscle exercise: especially some long-term sitting work, lumbar back muscle is weak, easy to damage, so there should be a purpose to strengthen the exercise of the lumbar back muscle, such as doing some forward extension, backward, left and right lateral bending, lumbar rotation and other movements, so that the lumbar muscles developed, ligaments strong, obese people should lose weight to reduce the burden on the waist. 2, life position: from a biomechanical point of view, in daily life there are various actions are correct and incorrect, such as reading, fetching and daily sitting, such as the use of bad posture, not only increases the chance of lumbar muscle strain, and easy to make the pressure in the intervertebral discs rise, increasing the incidence of lumbago. Do not stand or sit for a long time, stand for a long time can squat a squat, so that the lumbar muscles relax. When extracting heavy objects from the ground, you should bend your knees and squat to avoid bending over to increase the burden, and when taking heavy objects, the body as close as possible to the object and keep it close to the abdomen, with both legs slightly squatting. 3, sports position: a variety of sports have corresponding requirements, including the preparation work before the start of a large amount of exercise, are to follow the implementation, especially before and during the game, do not follow the requirements. Daily exercise should also be the same, such as running sports should first jog, to be adapted to the body and then run fast. 4, correct posture: the main cause of lumbar muscle strain is postural lumbago, so the waist can easily up one of the “reasons” is to correct the posture. To develop the habit of “standing straight, sitting upright, sleeping flat”: 1, stand: stand with the abdomen straight, two lower limbs straight, eyes level. 2, sitting: sitting on a chair with a backrest, both hips, both knees flexed 90 degrees, the lumbar spine and the backrest as tight as possible, leaving no gaps to reduce the lumbar spine forward flexion. 3, sleep: sleep as flat as possible, the pillow is not too high, 8 to 10 cm is appropriate, the head to maintain a natural supine position is ideal. Lumbar back lying flat on a plank bed (plank can be padded Simmons mattress), both knees, hips slightly curved, so that the whole body muscles, ligaments and joints to obtain maximum relaxation and rest. For those who are not used to lying on their backs, side lying position can also be used, but the head and neck and both lower limbs are still in this position is better. Prone position, whether from the physiology or from the viewpoint of keeping the airway open, are less scientific, should be corrected.