Lumbar pain dare not make efforts, may be due to acute lumbar sprain, lumbar disc herniation or lumbar muscle strain and other reasons. 1. Acute lumbar sprain: in lifting and pulling heavy objects, heavy physical labor or fall, etc., the lumbar due to excessive pulling or twisting can cause ligament, muscle or joint injury, local pain and activity limitation, lumbar due to pain can not make strength. 2. Herniated lumbar intervertebral disc: lumbar intervertebral disc will degenerate due to age, pregnancy, weight bearing, etc. The nucleus pulposus will be free, resulting in nerve compression, and the patient may have lumbar pain, numbness of the lower limbs, weakness of the limbs and other manifestations of the lumbar pain, resulting in lumbar pain, which makes the lumbar region unable to exert force. 3. Lumbar muscle strain: Repeated lumbar activities, lumbar injury, chronic prolongation and other reasons can cause lumbar muscle strain, lumbar pain on one side or both sides of the pain, can be in the posture of changes in the lumbar pain aggravated. It is recommended to consult a doctor in time to improve the lumbar imaging and other related examinations, to clarify the cause of the disease, and then targeted treatment.