The main cause of lumbar disc herniation is the poor stability of the lumbar spine, and the lumbar intervertebral disc is subjected to external forces in the lumbar spine during the activity, causing the nucleus pulposus to protrude into the spinal canal. In order to protect the stability of the waist, the need to use the belt, the belt is best to have a certain rigid support, especially in the back of the waist has a few small steel plate, rigid support is the best, its main role is to prevent the process of bending over the disc pressure increases, once the pressure of the disc increases will cause the nucleus pulposus to protrude into the spinal canal, usually wear a rigid support of the lumbar can be the best prevent bending activities.