Sudden pain in the lower back and inability to bend down may be caused by acute lumbar sprain, lumbar disc herniation, urinary stones, etc. The causes of the disease are different, and the treatment methods are different, including acupuncture treatment, traction treatment, surgical treatment and so on. Acute lumbar sprains can cause lumbar joint disorders, or severe pain in the lower back, when the patient bends over to carry objects. Patients can use acupuncture to stimulate localized lumbar acupoints to relieve the pain in the lower back. In addition, patients are prohibited from bending over to carry objects any more, and follow the doctor’s advice of strict bed rest. Patients suffering from lumbar disc herniation under the action of external forces, lumbar vertebrae seriously protruded, or even prolapsed, thus producing serious compression on the nerve root or dural sac, patients will appear lumbar severe pain, numbness and weakness of the lower limbs. At this time, the patient should go to the hospital in time for traction therapy, by the doctor to standardize the subluxation at the traction, duration, to promote the reset of the lumbar intervertebral disc. At the same time, assist to take acupuncture therapy, such as hand needle therapy, gua sha therapy, prick blood cupping method. If the patient has stones in the urinary system, it will also manifest as sudden pain in the lower back unable to bend over. It is recommended that patients seek medical examination to clarify the cause of the disease and targeted treatment.