Hydrocephalus is not really water in the brain, of course. The water here actually refers to a colorless, clear fluid that protects the brain, namely cerebrospinal fluid. Cerebrospinal fluid can provide nutrition and support protection for brain tissues, and it exists quantitatively. If for some reason too much cerebrospinal fluid is produced and keeps gathering in the skull, it will make the brain in a sick state and form hydrocephalus. Once hydrocephalus appears, it is very dangerous and it is crucial to achieve early detection and treatment. In the treatment of hydrocephalus, most of them mainly need to be treated by surgery. The conventional surgical method is hydrocephalus shunt, which uses a shunt tube to divert excess cerebrospinal fluid from the brain to other parts of the body to be absorbed. However, there are many postoperative complications associated with this traditional shunt procedure, such as infection, blockage of the shunt, and excessive shunting. What are the symptoms of overdrainage of hydrocephalus? Excessive shunting of hydrocephalus can lead to a decrease in intracranial pressure, resulting in hypocranial pressure syndrome, such as headache and dizziness, nausea and vomiting, especially when the position is changed. Excessive drainage of hydrocephalus can also lead to supratentorial herniation of the cerebellum, resulting in impaired consciousness and even cardiac and respiratory arrest. From all of this, it is clear that conventional shunt surgery is not the ideal treatment and that a more comprehensive treatment plan is needed.