Intracranial infections are a frequently encountered complication in neurosurgery and usually occur after craniotomy. There are some common bacterial infections that are relatively well controlled; while some superbacterial infections can be very tricky and difficult to dispose of, and some patients even end up facing life-threatening conditions. For example, intracranial infections can occur after hydrocephalus with cerebral crest fluid shunts, mostly 3 to 7 days after surgery. Crest fluid leakage, extraventricular drainage, subclinical surgery, diabetes mellitus, nature of surgery, type of incision, timing of surgery, time of surgery, etc. all affect the occurrence of postoperative intracranial infection, among which, the length of surgery is closely related to the occurrence of intracranial infection (surgery time >4 hours increases the risk of intracranial infection by 2 times). Once an intracranial infection occurs, it should be treated as soon as possible. Is the cost of treating intracranial infection high? The cost depends on the specific condition and the specific treatment measures, and the cost is not too high. However, for the treatment of hydrocephalus, it is entirely possible to prevent and avoid postoperative intracranial infections through effective means. At present, there is a new method of hydrocephalus treatment, that is, through a set of brain crest fluid specialist treatment technology, the amount of brain crest fluid, brain crest fluid composition, ventricular wall abnormalities and ventral wall are given normalized treatment, including brain crest fluid department shunt treatment, brain crest fluid department drainage treatment, microscopic choroid plexus resection three treatment methods, and also includes a series of other treatment and disposal, can achieve good treatment results, basically will not occur Post-operative infection and blockage of the tube, and basically no fever, are generally recognized by the neurosurgical community.