Sudden lumbar pain can not move straight up may be due to acute lumbar injury, lumbar disc herniation, bone fracture, kidney stones and so on. 1. Acute lumbar injury: due to the lumbar muscles, fascia, ligaments and other soft tissues in the role of external forces by excessive tension, causing tears, resulting in lumbar severe pain, we must promptly carry out the lumbar braking, the use of supportive devices for immobilization treatment. 2. Lumbar disc herniation: due to degeneration or injury of the intervertebral disc and other factors caused by disc herniation, compression of the nerve caused by severe pain, can be helped by bed rest, traction therapy to help recovery. 3. Fracture: Fracture in the lumbar region due to trauma causes severe pain, which can be treated by conservative treatment or surgical repositioning and fixation. 4. Kidney stones: renal colic caused by the precipitation of stone-forming substances in the urine and the accumulation of stones that move in the kidney can be treated by ultrasonic lithotripsy, laser lithotripsy and other surgeries. There are other causes of back pain can not move straight up, if the persistence of non-relief, it is recommended to timely visit the hospital, improve the relevant examination to clarify the cause of the disease, follow the doctor’s instructions for targeted treatment, so as not to delay the condition.