Acute meningitis is usually not fatal if it is treated promptly and is mild. If the condition is more severe and treatment is not timely, there is a possibility of death, and the time of death is related to the individual and cannot be generalized. Acute meningitis is usually caused by viruses, bacteria, fungi, chlamydia and other pathogens that attack the soft meninges and arachnoid membranes and other parts of the brain, mainly including viral meningitis, bacterial meningitis, pyogenic meningitis and tuberculous meningitis. The disease usually starts acutely or explosively, and usually reaches its peak within one week after the onset of the disease. The patients have obvious systemic symptoms, such as high fever, dizziness, cervical rigidity, projectile vomiting, etc., and when it is serious, there will be serious sequelae, such as consciousness and limb disorders. Acute meningitis patients are not inevitable death, its treatment is mainly to identify the cause of the disease, targeted treatment. Early treatment has a relatively good prognosis, but if not treated in time, complications or even death may occur. Therefore, once the patient is found to have the above abnormal symptoms, it is recommended to seek timely medical treatment to avoid delaying treatment and aggravating the condition.