Approximately 59% of recurrent meningitis cases are due to such anatomical abnormalities, 36% are due to immune deficiencies (such as complement deficiency, which predisposes especially to recurrent meningococcal meningitis), and 5% are due to ongoing infections in areas adjacent to the meninges.
Oko 59 % slučajeva recidivirajućeg meningitisa nastaje zbog anatomskih poremećaja, 36 % zbog imunodeficijencija (poput nedostatnosti komplementa, koje stvaraju sklonost osobito recidivirajućem meningokoknom meningitisu), a 5 % zbog dugotrajnih infekcija u područjima neposredno uz moždane ovojnice.