Objectives: to determine the most common abnormalities of the UC and their relation to other placental pathologies. Secondary outcome was to determine UC morphological characteristics in placentas with UC abnormalities and to compare them with the placentas without UC abnormalities. Likewise, we aimed to determine gestational age, fetal birth weight, placental weight, placental diameter and thickness of the placentas with UC abnormalities and without UC abnormalities and to compare them. Materials and methods: retrospective study within the time span from January 1st 2020 to December 31st 2020 was conducted at the department of Pathology, Forensic Medicine and Cytology , University Hospital of Split. Placental pathohistological reports that had following International classification of diseases codes (ICD code) for placental abnormalities: O41, O43, O45, O69, and Q27.0 were included in the study. Exclusion criteria were all of the placentas with insufficient data or misplaced ICD codes. Results: From the 202 placental pathohistological reports with various placental pathology, 76 (37,65%) had an umbilical cord pathology. The most common umbilical cord abnormality was the presence of UC abnormality combined with other placental abnormalities, found in 51 placentas, of which the combined fetal and maternal inflammatory response, found in 34 (66,7%) placentas was the most common one (P<0,0001). The least common UC abnormalites in placentas with UC abnormality were the fetal vascular malperfusion, velamentous insertion and true knot. The most common placental abnormality among placentas without UC abnormalities was maternal vascular malperfusion, that was noted in 59 (4,8%) placentas, while villitis basalis was noted in just one placenta (P<0,0001). Conclusion: The most common UC abnormality according to the pathohistological reports was the abnormality of the UC combined with other placental abnormalities. In order to understand the pathology of UC better and its effect on perinatal morbidity and mortality further studies are necessary.