Septic meningitis has the potential to recur. Septic meningitis is a relatively common type of bacterial meningitis caused by a purulent bacterial infection. The pathogens are more commonly pneumococcus, diplococcus meningitidis, Haemophilus influenzae type B, and possibly Staphylococcus aureus. Some bacteria are sensitive to antibiotics and can return to normal after about three weeks of treatment, but some may be resistant to antibiotics and cannot be completely killed even after a longer course of treatment. Antibiotics can also be difficult to cross the blood-brain barrier, and relatively few antibiotics can really enter the central nervous system and play a role in killing bacteria, so partial treatment of sexualized brain is often produced, and incomplete treatment leads to the possibility of recurrence of septic brain. Therefore, patients with septic meningitis should undergo repeated lumbar punctures to confirm that the patient’s cerebrospinal fluid indicators return to within normal limits before discharge.