The dural sac compression suggests that the lumbar intervertebral disc herniation compresses the spinal nerve, and the dura is a fibrous tissue membrane wrapped around the outside of the spinal cord. When the lumbar intervertebral disc undergoes degenerative changes, the fibrous ring ruptures and the central nucleus pulposus enters the spinal canal to compress the dural sac, which can then cause nerve root edema, resulting in radiating pain and numbness in the lower extremities, and a positive straight leg raise test and strengthening test. In order to reduce the pressure of the lumbar disc on the dural sac, continuous traction can be applied to the lumbar spine for 30 minutes each time, 1-2 times a day, or bed rest can be applied to reduce the pressure of the lumbar disc, so that the lumbar disc can be partially returned, which can also relieve the pressure on the dural sac. After the dura is released from compression, the neuroedema gradually subsides, and the painful symptoms of the lumbar region and lower limbs can be reduced or disappear.