In neurosurgery, intracranial infections are very common, for example, in hydrocephalus bypass surgery, which is traditionally done routinely and has a high chance of causing intracranial infections after surgery. Intracranial infection is not a trivial problem, it means that pathogens have invaded the cranial cavity and are more dangerous if not controlled by timely treatment. Generally, intracranial infections can cause fever, rapid heartbeat, changes in blood pressure, respiratory impairment, and changes in the intracranial environment, which can affect the central nervous system. Once the presence of intracranial infection is detected, anti-infection treatment should be actively carried out. Will the symptoms recur during the treatment period of intracranial infection? The answer is yes, especially if the patient is infected with some stubborn drug-resistant pathogens and the treatment is incomplete, the symptoms may recur. There are also seizures, stiffness of the patient’s limbs, generalized pain, fatigue, drowsiness, and even confusion and coma. The recurrence of intracranial infection symptoms is very serious and may lead to various serious problems such as cramps, impaired consciousness and mental disorders, etc. Once the presence of intracranial infection problems is diagnosed, it is important to go to a regular hospital for treatment in a timely manner.