The back is a popular commodity used to correct the sitting posture or poor posture of adolescents, similar to the medical term thoracolumbosacral spinal support. It is not recommended to wear it all the time, especially when sleeping at night to remove it, because its main role is to correct or avoid scoliosis caused by poor posture of adolescents, only prevention, not treatment. Even in the treatment of adolescent idiopathic scoliosis, it is not recommended to wear all the time, generally wear about three months, you should go to the hospital to review the X-ray, once the scoliosis is corrected, should be promptly removed from the external fixation brace. The reason is that wearing external fixation brace for a long time, such as a back brace, can also lead to disuse atrophy of the muscles in the chest and back.