Objectives. The aim of this study was to determine the incidence of vesicoureteral reflux and intrarenal reflux in children who underwent contrast enhanced voiding ultrasonography. Futhermore, the correlation between VUR and IRR was determined in regard to age and sex of the children as well as the correlation between the findings of ceVUS and the findings of DMSA and MAG3 scintigraphy. Study design. Cross – sectional study Participants and methods. The data was taken from the hospital information system at the Nephrology ward of the Pediatric clinic of the University Hospital Osijek. This study included 347 children who underwent ceVUS for the first in the period from 1. 2. 2019. to 1. 2. 2023. Results. In this study the incidence of VUR was 33,4 %, while the incidence of IRR in a group of children with VUR was 16,7 %. Girls suffered far more likely from VUR than the boys. VUR was found more often in children under one year of age. Futhermore, the correlation between the sex of the children and grade of VUR was not found. Similary, there was no correlation between IRR and sex/age of the children, while IRR was found to occur more often in children with higher grades of VUR. Pathologic findings of urinary tract ultrasound and MAG3 scintigraphy were far more frequently observed in a group of the children with VUR. Conclusion. ceVUS as dynamic imaging technique with exceptionally high sensitivity as well as high specificity, but without use of ionizing radition can with ease determine VUR and IRR. Many benefits made the ceVUS the No. 1 imaging technique in VUR diagnostics. By using ceVUS it was determined that VUR occurs far more often in girls and in children who suffer from recurrent UTIs and disorders of urinary system. The most common indications for ceVUS include recurrent UTIs, pathologic findings of urinary tract ultrasound and positive family history of VUR.