Hydrocephalus is something that we have all heard of, but what kind of disease it really is may not be understood by many people, and this specific one has to start with the cerebrospinal fluid. There is cerebrospinal fluid in the normal brain, but because of the limited space in the cranial cavity, the amount of cerebrospinal fluid is relatively fixed and is a dynamic and balanced process, and when there is some kind of craniosynostosis or craniosurgery, there is a problem with the absorption of cerebrospinal fluid, which can lead to the formation of hydrocephalus. When hydrocephalus occurs, the brain is in a pathological state, especially when the amount of cerebrospinal fluid is increasing and high cranial pressure is formed, which has a great impact on health. Can hydrocephalus be directly extracted? Many patients with hydrocephalus have the idea that since there is a lot of cerebrospinal fluid, it can be pumped out, but this actually depends on the situation. In clinical practice, some hydrocephalus can be relieved, while some hydrocephalus is persistent and can be relieved in the short term, but a temporary extraction will not solve the long-term problem. For example, traffic hydrocephalus, which is a common type of hydrocephalus, usually requires surgical treatment. The conventional surgical method is hydrocephalus shunt, which mainly involves using a shunt tube to drain excess cerebrospinal fluid from the ventricles to the abdominal cavity or some other body parts for absorption.