In orthopedic clinics, we often see parents holding their children to see the “slant neck”, most of these “sick children” are infants and young children, manifesting long-term (chronic) crooked neck posture, some also in the primary hospital after “massage Some of them are also treated with “massage” in primary care hospitals but do not improve. The first thing we need to clarify is whether the posture is habitual or due to disease. In the former case, the crooked neck is often not fixed to one side, that is, the child can crook his head to the opposite side, but most of the time it is crooked to one side. This situation is mostly seen in small infants and is mostly related to the fact that the muscles of the child’s neck at this stage of development do not yet have the strength to control the head and neck posture and the fixed posture of the mother holding the baby. As the child develops and the mother changes her holding habits, the situation will improve naturally. The latter is the most common form of myotonic plagiocephaly, which is related to intrauterine posture during fetal life and birth injury. If it does not improve after 1-3 years old and there is obvious muscle tension, surgery is necessary. Orthopedic examination reveals no muscle tension in the neck and no restriction of head and neck movement, which should be further identified by an ophthalmologist. Other rare cases include congenital fusion of the cervical spine and hemivertebral deformity, which can be manifested as a non-significant restriction of head and neck movement or a complete restriction of varying degrees, and sometimes the appearance of the child’s neck can be found to be short. In addition, neonatal brachial plexus palsy and spinal cord tumors can also cause a squint. Parents should choose when and how to seek medical attention based on the other manifestations of their child’s condition.