The main hazards of hunchback in small children are: compression fracture deformity of the spine, joint deformity, and impaired function of the spinal nerves or spinal cord. The hunchback of a small child is mainly a change in the biomechanics of the spine, resulting in abnormal loading of the spine and the formation of compression fractures. As a result, the thorax becomes abnormal and thoracic organs such as lung and heart tissues are compressed. Children with hunchbacks can also cause compensatory changes in other parts of the body, such as the pelvis, which can lead to corresponding changes in the hip and knee joints, resulting in the formation of arthritis or compression fractures. Small children hunchback can make the body’s spinal nerve or spinal cord function is damaged, affecting normal life. Hunchback of small children is more harmful, parents should help children to be corrected in time, if necessary, need to seek medical treatment as soon as possible.