When a child speaks late, it may be due to physiological factors, or it may be due to hearing impairment, delayed development of the speech center, and so on. 1. Physiological factors: the child’s innate personality is more introverted, or the acquired environment lacks the opportunity to take the initiative to speak, may lead to the child to speak later, as long as the removal of triggers can be. 2. Hearing impairment: Whether it is binaural hearing impairment or monaural hearing impairment, it will greatly impair the child’s ability to speak, especially for children with binaural hearing impairment, they often cannot even express simple phrases effectively, while the child’s intellectual development will also be affected. 3. Backward development of language center: Cerebral palsy caused by congenital hypoxic-ischemic encephalopathy and mental retardation caused by genetic metabolic disease will cause the development of the child’s language center to be impaired, which will lead to the phenomenon of children talking late. There are other reasons for children’s late speech. It is recommended to consult a doctor in time to find out the reasons and take effective measures and treatments under the doctor’s guidance.