Children don't talk, which may be these reasons.

Generally, children can speak at the age of 1/3, and some speak later, but they will certainly say some simple words, such as mom and dad. If the child does not speak, it may be for the following reasons. Tongue frenulum is too short

Please rule out whether the tongue frenulum is too short. If so, please ask the otolaryngology department to cut off the tongue frenulum. Poor hearing

Eliminate the problem of poor hearing, because "ten deaf and nine dumb", please ask an otolaryngologist to check your hearing. Too many dialects

Exclude the situation that there are too many dialects in the family. In this environment, children will be at a loss about who to learn. Brain dysplasia

After the above conditions are ruled out, please rule out brain dysplasia, especially if the child has an abnormal birth history such as asphyxia, intrauterine distress, umbilical cord around the neck, and turbid amniotic fluid. Can be excluded by head CT. However, if there is really brain dysplasia, it is suggested that rehabilitation treatment should be carried out in time. Autism < P > Autism may still be related to having an abnormal birth history. In this case, it is better to ask a psychologist for help.