Some children focus their attention on what they are doing or thinking about and do not show sensitivity to the sound of his name being called, sometimes there may be no response or even no reaction to calling him. It is also important to exclude the child’s hearing dyspraxia, which may also be seen in other childhood mental disorders such as mental retardation. Therefore, if parents find that their child is ignoring people or has other symptoms, such as poorly developed speech, poor affection for others, does not fit in well with others, and does not have high learning ability, they should go to the pediatrics, psychology, or child health care departments of regular hospitals for diagnosis and treatment as soon as possible.