Prescription points: Kidney Yu, Huanjiao, Chengshan, Houxi, Renzhong, and Lumbago. Method: Take both sides, except for Ren Zhong, and use the diarrhea method, retaining the needles for 15 minutes, during which time the needles are carried 4 times. Once a day. Moxibustion is added after the kidney Yu needle. Treatment principle: Acute lumbar sprain is often caused by injury to the sacrospinous muscle or interspinous ligament and other soft tissues of the lumbar region, resulting in stagnation of qi and blood and obstruction of the meridians. Therefore, the main method of treatment is to unblock the meridians, harmonize the qi and blood, and regulate the yin and yang. According to the site of pain and location of the acute lumbar sprain, the patient should be in the Directing Vessel, Foot Sun and Foot Shaoyang meridians. The principle of acupuncture point selection: Firstly, the points are taken by following the meridians, so Renzhong of the Directing Vessel, Kidney Yu and Chengshan of the Foot Sun meridian, Houxi of the Hand Sun meridian, and Huanjiao of the Foot Shaoyang meridian are selected. Secondly, special acupoints for low back pain are taken. Third, the combination of local and distal acupuncture points is more effective. Fourth, take the points according to the role of each specific point. ”The kidney channel through the spine, take the kidney Yu, local with the ring jump can regulate the kidney qi, main treatment of lumbar pain, moxibustion can stimulate the kidney yang qi, get rid of cold damp; bladder meridian holding the spine to the lumbar complex kidney, follow the meridian far to take Chengshan, can regulate the foot sun meridian qi; Houxi point is the same name of the foot sun meridian meridian Yu points, acupuncture can unblock the sun meridian qi; Renzhong point and the Governor’s meridian, can benefit The lumbar pain point is an empirical point, and is called the lumbar pain point in the hand acupuncture, and is clinically effective for those who suffer from lumbar pain caused by the Foot Sun and Foot Shaoyang meridians. The purpose of using the diarrhea method is to make the stagnant qi and stagnant blood to be quickly adjusted. Clinical practice shows that with proper technique, the treatment is very satisfactory.