The prognosis of patients with meningitis is good after active treatment and generally does not affect life expectancy. If not actively treated, the continued progression of meningitis may lead to shock or even death. Meningitis is mainly associated with pathogenic bacterial infections such as poliovirus, pneumococcus, staphylococcus aureus, and mycobacterium tuberculosis. Meningitis caused by viral and bacterial infections can be cured by antiviral or antibacterial treatment in most patients and will not affect the patient’s life expectancy, while meningitis caused by Mycobacterium tuberculosis infection will have a certain impact on the overall life expectancy or quality of life, but it is difficult to judge specifically. What is clear, however, is that meningitis, if left untreated, can lead to rapid deterioration of the patient’s condition and death within a short period of time. Patients with meningitis need to seek prompt medical attention and take medication strictly as prescribed to avoid delays and serious consequences.