Congenital uterine anomalies occur during embryonic development of müllerian ducts when an interruption or dysregulation occurs in any of the dynamic processes of differentiation, migration, fusion, and canalization. They are associated with many gynecological and obstetrical conditions, while signs and symptoms vary depending on the type of anomaly. The actual prevalence of müllerian anomalies is still unknown. In literature, the prevalence in the general population ranges from 0.16 to 10 %, while it is higher in the high-risk population and is the highest among infertile women with recurrent abortions where prevalence is approximately 25 %. The aim of the study was to present the prevalence of congenital uterine anomalies at the University Hospital Sveti Duh in the period from January 1, 2007 to December 31, 2016. In this study, data from surgical records and delivery records were used. A total of 40 618 patients were included: 31 387 women who gave birth and 9 231 operated women. Operated women with uterine anomalies were mostly hysteroscopically examined and/or treated due to poor reproductive outcome. The results are presented according to the CONUTA classification. Total prevalence of congenital anomalies (1.23%), prevalence among the operated women (3.28%), and prevalence among women who gave birth (0.63%) were obtained. Fifteen types of anomalies were reported, and the most common anomalies were partial septate uterus (75.2%) and partial bicorporal uterus (13.8%). Main factors contributing to the unreliability of epidemiological data in this area are: different classification systems, the variety of diagnostic methods and their capabilities, and various choice of women's population. One of the possible solutions to this issue is the widespread use of 3D ultrasound and more standardized diagnostic criteria.