Many patients with low back pain, including those who are treated conservatively or undergoing surgery, use a belt. How should it be used? The most important role of a lumbar belt is to replace part of the strength of the lumbar muscles and stabilize the lumbar spine motion segments, in other words, to reduce its load. Then, for those patients with lumbar muscle strain, acute lumbar sprain, lumbar instability, lumbar spine slip, lumbar disc herniation, and lumbar spine after surgery, the short-term use of the belt can play a role in relieving pain. However, it must be noted that one should not rely on the lumbar belt, as long-term use can lead to aggravation of lumbar muscle weakness. It is important to exercise the strength of the low back muscles after the symptoms are relieved so that you can gradually get out of the belt. For the existence of lumbar spondylolisthesis, lumbar disc herniation and some other diseases that require active management can not be avoided, and the original disease should be actively treated.