Objective: The aim of the study was to examine the prevalence of social anxiety in students of Faculty of Medicine in Osijek and to determine its influence on carrying out student duties. Study design: Cross-sectional study. Participants and methods: The study was carried out on 120 students of both sexes, median age 23. The data was collected through an online survey. The information about age, sex, year of study, existence of mental illness or physical illness was collected, as well as the existence of mental disorders in the family history, the number of siblings and as which one of the siblings was the examined born into the family. After those questions, the examined had to fill out two different surveys- one by The American Association of Psychiatrists which contained various physical and mental sensations linked to social anxiety which may have occured in social situations in the past 7 days, and the other, the Liebowitz Social Anxiety Scale, which contained various described situations and asked the examined to rate the occurance of anxiety and avoidance in those specific situations. The statistical program MedCalc Statistical Software version 19.1.7 (MedCalc Software Ltd, Ostend, Belgium; https://www.medcalc.org; 2020) was used in the statistical analysis. Results: According to the first scale, social anxiety is occurring, in a vide spectrum, in 52,5 % of the examined students. According to the second scale, social anxiety is occurring in 30 % of the examined, one third which of belonging to severe and very severe social anxiety. Using Spearman coefficient (Rho = -0,203 P = 0,03 for the first scale and Rho = -0,215 P = 0,02 for Liebowitz Scale) a negative correlation between severity of social anxiety and grades was perceived. The examined who had more severe varieties of social anxiety had lower grades than those who had mild symptoms or none of them. Conclusion: Social anxiety is occurring in a significant number of students of the Medical Faculty of Osijek and it has adverse effects on carrying out student duties.