The severity of hydrocephalus in babies depends on the severity of the hydrocephalus. In mild hydrocephalus, the pressure on the brain is not particularly severe and does not produce many symptoms. If hydrocephalus is heavy, like obstructive hydrocephalus, it will compress the corresponding brain tissues, and the compression of brain tissues will cause the development of brain tissues, including the function of brain tissues, there will be a corresponding lack of some serious hydrocephalus can squeeze the brain just a little bit or cause the skull to increase in size, and its harm is the harm to the central nervous system. If hydrocephalus is mild, it is not necessary to take care of it or to observe it. If hydrocephalus is more, it affects the development of the central nervous system, brain function, limbs, language, and even coma in severe cases. There are many clinical manifestations, and they vary according to the severity of hydrocephalus.