It is necessary to combine the causes and severity of the condition to make a comprehensive judgment. It occurs mostly in infants and children and can be divided into three cases, namely, habitual, muscular and bony. For habitual squint, which is usually referred to as abnormal posture, for example, the fetus always tilts its head in one direction during or after birth, forming habitual squint, is not an organic lesion, but only a functional imperfection. However, in the case of muscular squint, which is caused by asymmetry of the sternocleidomastoid muscles on both sides, muscle spasm or scar on one side, or bony squint caused by cervical spine lesion, these two cases usually cannot be cured by themselves if they are not treated in time. If the symptoms are mild, massage can be used to reset the neck. If the massage is unsuccessful, surgery should be performed in a timely manner if the indications for surgery are met.