The normal value of white blood cell count in the cerebrospinal fluid routine laboratory test is 0-5. The white blood cells mentioned here are actually nucleated cells. If the number of nucleated cells in the cerebrospinal fluid routine laboratory test, significantly increased, more than 500 or more, basically is a bacterial infection or purulent meningitis, need to be actively antibiotic treatment. If necessary, lumbar large pool drainage or multiple lumbar punctures are also performed to achieve the purpose of controlling the cerebrospinal fluid. If it is 50 or more, there is a possibility of tuberculous meningitis or fungal meningitis, and appropriate antifungal and antituberculous treatments should be administered. If it is between 5-10, there is a possibility of viral meningitis and antiviral therapy is required. All intracranial infections are treated with dehydration to lower cranial pressure and nutritional neurologic therapy.