INTRODUCTION AND AIM: The aim of this study was to determine the frequency of purulent meningitis in relations to oseptic meningitis and meningococcal sepsis, demographic characteristics of the patients, the age of the participants, length of the treatment, cause of the disease, incidence, treatment location, specific complications that arised during the treatment and the outcome. MATERIALS AND METHODS: The study was conducted during June, 2016., at the clinic for infectology, Clinical Hospital Center Split. The required information was gathered from patients' history of illness, treated from 2010. to 2015. The data collected was entered in Microsoft Excel Spreadsheet according to a pre-prepared chart of accounts. For processing, descriptive statistic was used. RESULTS: The study provided insight into sex-age ratio. Incidence of illness is higher in the female population, also patients aged 18-65 years have higher risk. Incidence of purulent meningitis is higher than the oseptic meningitis. The most frequently isolated bacteria is streptococcus pneumoniae. The study concluded that the average treatment period is 15 to 21 days. Purulent meningitis has a higher incidence during winter. 60 % of the participants preserved their conscience, there were no severe neurological deficits. Two participants developed convulsions as a complication, while three others developed encephalitis. Moreover 10 % of the participants also developed decubitus as a complication. They were largely autonomous, and the most common nursing diagnosis was decreased exercise tolerance. Because of the severity of their conditions, 30 % of the participants were treated at the ICU. Only 1 out of 30 participants died as a result of the disease. CONCLUSION: All hypothesis from this research were confirmed. Purulent meningitis usually affects people aged 18-65 years. Most common cause of illness is S.Pneumoniae. We found that in 37 % of the cases hospitalization lasted 15 to 21 day which was longer than was expected. Patient were largely autonomous, and 60 % of them preserved their conscience.