Scoliosis is defined as a lateral bending Cobb angle of 10° or more in the coronal plane of the spine. This article refers to congenital scoliosis and idiopathic scoliosis, and other types of scoliosis are not covered in this article. Congenital scoliosis generally refers to hemivertebral deformity, blocked vertebrae, butterfly vertebrae and other manifestations caused by developmental disorders or incomplete segmentation of the spine, with hemivertebral deformity being the most common, and spinal deformity caused by blocked vertebrae on one side and hemivertebrae on the opposite side being the most obvious. Most hemivertebral deformities require surgical treatment, the purpose of which is to remove the hemivertebral body and rebuild the spinal balance. Most advocate surgery at about 5 years of age because children around 5 years of age are more tolerant of surgery, most of the deformities are not serious at this time, and most of the adjacent segments have no structural abnormalities, so surgery requires fewer segments to be fixed and fused and has less impact on future development. If you are too old, you may have significant scoliosis and structural changes in the adjacent vertebrae, making surgery more difficult and expanding the scope of surgery. Too young is relatively less tolerant of surgery and anesthesia.