Intracranial infection is a complication with very high disability and mortality rate. If not treated in time, it can cause tissue (brain, etc.) congestion and edema, which can compress the brain nerves and cause many central nervous system diseases, as well as overflow or exudate formation, causing intracranial hypertension, resulting in symptoms such as dizziness and confusion. Clinical classification of intracranial infections Clinically, there are many types of intracranial infections, and the common ones are intracranial infections after craniotomy, intracranial infections with extraventricular drainage, intracranial infections with septic and tuberculous meningitis, intracranial infections with extraventricular or lumbar pool drainage, and so on. In addition, different types of intracranial infections are caused by different pathogens, such as bacteria, viruses, parasites, mycoplasma, chlamydia, mycobacteria, rickettsia and other pathogens can cause intracranial infections. Gram-positive coccus infection, Acinetobacter baumannii is more common, the former is easier to treat, the latter as a drug-resistant superbug infection, treatment is more difficult, the general anti-infection treatment is not very effective. However, patients do not need to worry too much, the current medicine is more developed, treatment technology is also advanced, find the right hospital and method, the possibility of recovery is still very large. It is understood that intracranial infections can occur at any age, with symptoms such as fever, headache, general malaise, drowsiness, limb pain, etc. At this time, patients should pay high attention and go to the hospital for a comprehensive physical examination, and if intracranial infection is suspected, further retention of cerebrospinal fluid for culture, routine, biochemical and other tests, to be clearly diagnosed, and then go to a regular hospital for treatment in a timely manner.