The aims of this study are to claim whether there are differences in sexual habits of students of the Faculty of Health Studies at the University of Rijeka according to gender, age and place of residence and to determine whether there are differences in sexual habits of students regarding the conduct of sex education in school. In Croatia, there is no single separate subject of sex education as in other countries in Europe and the world. Countries that have sex education as a separate subject have significantly fewer underage pregnancies and abortions, and fewer sexually transmitted diseases. The research was conducted using an anonymous survey questionnaire developed exclusively for this research. The questionnaire consisted of 3 demographic and 11 specific questions. This study included 128 students, 88,3% females and 11,7% males. Men learned statistically significantly more from the media than women (73,3%). Men use significantly more mechanical methods of contraception (66,7%). Women versus men have less sexual partners, 3 (2-4): 4 (2,5-6,5). Students 25 years and younger learned statistically more at puberty from media sources, schools and health professionals. More patients 25 years and younger were vaccinated against HPV (37,4%). Older than 25 respondents are more likely to go for regular gynecological examinations (86,1%). 27% of older respondents do not use contraception, which is also significant. Older respondents have more external partners compared to younger 3 (2-5): 2 (1-4). No statistically significant difference was found when comparing the respondents regarding the place of residence. For the connection between sex education and sexual habits, a difference was found in the fact that those students who did not have sex education in school learned significantly more from friends about sex education (70,8%) than in school (16,7%). There were significantly more people who had sex education at school and were vaccinated against HPV, compared to those who did not (32,6%: 12,5%). The average age of sexual intercourse is 17,71, the average number of sexual partners is 3,37. It is concluded that the statistically most significant difference is among the age of the respondents, while among other variables the difference is not very pronounced.