Acute lumbar pain is mainly due to four reasons: First, it may be an acute lumbar sprain, when lifting and carrying heavy objects, resulting in muscle damage beyond the normal load, resulting in local inflammatory stimulation and bruising swelling will produce a more obvious pain. Second, the lumbar spine synovium, synovial embedment, in the process of bending the waist violently stretching or lumbar twist, easily lead to the synovial joint around the synovial joint in which, resulting in severe pain in the waist, must go to the hospital for manual rehabilitation, lifting the synovial embedment, pain can be significantly improved. Third, it may be an acute lumbar disc herniation, that is, the rupture of the fibrous ring, the nucleus pulposus is squeezed out to produce pain, lumbar pain will often be accompanied by radiating pain symptoms of one lower limb. Fourth, ureteral stones, stones in the ureter in the process of downstream, will produce relatively large stimulation of the ureteral wall, and therefore produce a sense of lumbar pain.