INTRODUCTION: Surgical site infection is one of the most significant complications of caesarean section, with a global incidence of 2-15%. Age greater than 40 years, duration of caesarean section longer than 60 minutes and premature rupture of the membrane significantly increases the risk of developing a surgical site infection after caesarean section. OBJECTIVE: The aim of the research was to examine the frequency of surgical site infections after caesarean section at the Clinic for Gynecology and Obstetrics of the Clinical Hospital Center Rijeka and to compare it with the incidence in other countries of the world. The specific objectives of the study were to compare the incidence of surgical site infections after caesarean section according to the age of the subjects, regarding the duration of the operative procedure and regarding premature rupture of the membrane. METHODS: The research used data collected from the hospital IT system of the Rijeka Clinical Hospital Center in the period from January 1, 2016. until 31.12.2021. years. Statistical data processing was carried out using the Statistica program (Version 13.5.0.17, 1984-2018 TIBCO Software Inc), and the obtained data were presented using tables and graphs. Hypotheses were tested using the methods of descriptive statistics, the z test, and the Chi-square test for independent causes at the level of statistical significance p < 0.05 (5%). RESULTS: In the period from 2016 to 2021, 14,712 births were performed at the Clinic for Gynecology and Obstetrics of the Rijeka Clinical Hospital Center, of which, on average, 23.9% were by caesarean section. The incidence of surgical site infection after caesarean section is 2.8%, which is lower than the global incidence and the incidence in other countries. Almost every third woman in labor over the age of 40 developed a surgical site infection after a caesarean section, which is 23 times higher than in women under 40. Cesarean delivery lasted 33.2 minutes on average, and no cesarean section lasted longer than 50 minutes, so it was not possible to investigate the connection with surgical site infection. The incidence of surgical site infection after cesarean section in subjects with premature rupture of membranes is almost twice as high (4.5%) as in subjects with other indications for cesarean section (2.5%). CONCLUSION: The incidence of surgical site infection is significantly lower in the Rijeka Clinical Hospital Center compared to other countries included in the research. Age greater than 40 years and premature rupture of membranes significantly increase the risk of surgical site infection after caesarean section.