Babies who don’t speak can see the following departments: First, if the child is over one year old and still can’t speak, he or she must see the ENT department to check if there are any problems with the child’s esophagus, tongue, and vocal cords, if it is because of problems in these places, it is possible that the child can’t speak. Second, you can also see a child psychiatrist or child psychiatry in time, because some children may not speak because of mental retardation or autism, and if there is such a mental illness, they are also prone to the problem of not speaking or not speaking. Be sure to check ENT, child psychiatry and of course endocrinology, especially to see if the child is deficient in nutrients or trace elements.