Infantile hydrocephalus is an abnormal collection of cerebrospinal fluid caused by an increase in cerebrospinal fluid and an enlargement of the subarachnoid space, which manifests as cerebrospinal fluid hypertension and leads to expansion of the brain space. In infants, hydrocephalus is caused by an increase in pressure in the brain due to the accumulation of cerebrospinal fluid in the skull, and then hydrocephalus occurs, which may result in a bulging forehead, lethargy and epilepsy. The treatment for hydrocephalus is surgery, and there are many different types of surgery, such as surgery to remove the cause of the blockage, surgery to reduce cerebrospinal fluid secretion, or surgery to drain the cerebrospinal fluid. The choice is usually based on the condition of the baby. The condition of hydrocephalus changes over time, so it is important to keep an eye on the baby’s signs and, if necessary, do dehydration and cranial pressure lowering first. This can reduce the mortality rate of hydrocephalus. Hydrocephalus can be treated. In the treatment of hydrocephalus, multiple treatments complement each other and work together, and postoperative care and prevention of infection are also important. Because hydrocephalus is easily combined with cerebral hemorrhage annoying hernia intracranial infection, etc., may be life-threatening. Parents must be psychologically prepared for the occurrence of hydrocephalus and actively cooperate with the doctor for treatment to keep their children healthy. Each child has different symptoms, it is still important to find abnormalities and go to the hospital early.