The aim of the thesis was to explore the impact of sex education in the family on own intimate life of the individual. The work is divided into theoretical and practical part. The theoretical part describes issues that affect the content of thesis - human sexuality, sex education at school and in family, and individual family surrounding. The practical part describes the implemented research. The research aim was formulated in four hypotheses. The first aim was to verify whether young people perceive sex education in the family as something that affects their intimate lives. The second aim was to verify the connection between points of view that parents present to their children about contraception, abortion and the beginning of sexual life...