Ms. Chen called to ask: In the past month, my mother has been suffering from vague pain in her lower back, which worsens after doing housework and is relieved after a little rest. X-rays were taken at an outside hospital and a CT was done. the report card results showed no significant changes in bone quality. The doctor said it was a lumbar strain. What is lumbar strain? Answer: Lumbar muscle strain is a chronic injury to the lumbosacral muscles, fascia, ligaments and other soft tissues, resulting in local sterile inflammation, which causes diffuse pain on one or both sides of the waist and hip. Medicine then calls it kidney deficiency lumbago, which is one of the common diseases in chronic low back pain. The main causes of lumbar muscle strain are the following: first, after acute lumbar sprain and long-term repeated lumbar muscle injury; second, improper treatment; third, long-term repeated over-exercise or overload of the waist, such as long periods of sitting and standing; fourth, too low a temperature or too much humidity can induce or aggravate lumbar muscle strain. The treatment methods for lumbar muscle strain mainly include the following: topical Chinese medicine seal pack treatment, following the principle of Chinese medicine that through is not pain. Its advantage is that it relies on the direct penetration effect of external application, without oral intake and absorption through the stomach, thus not hurting the liver, gallbladder, spleen and kidney. The key to rehabilitation exercises is to keep the posture of the lumbar spine upright, reduce the lumbar curvature pelvic tilt and avoid posterior muscle contracture. Specific exercise methods include backward walking exercise, forward and backward leaning, left and right lateral flexion, flying swallow pointing water, radio exercises, etc. Internal Chinese herbal medicine is used to move qi and blood, relieve tendons and eliminate blood stasis, and promote the circulation and relieve pain, so as to nourish the liver and benefit the kidneys. The tendon manipulation, palm rubbing both sides of the sacral spine muscle, and then find out the pressure pain points or painful nodules, from top to bottom, point, flicking, pinching and other techniques one by one.