Background: Previous research describes how different life choices affect young people's current and future sexual health. Today, young people get to know about sex both through school, youth clinics, as well as via the internet. This places entirely new demands on midwives and teachers to respond to the information available to young people and the issues it raises. Through this study, the authors wish to clarify the questions young people ask about sex by studying the open forums on the internet. Objective: To study young people´s issues about sex on internet forums. Method: A qualitative method with inductive approach has been used to the study. Data was collected through umo.se under the forum “Question each other”. A total of 48 threads were analysed. The data have been analysed according to Graneheim, Lindgren & Lundmans analysis method. Results: The results culminated in 5 subcategories, 2 categories as well as an overall theme: Sense of vulnerability. Conclusion: The Internet works as a natural source of information for young people and can supplement the school's sex education and the youth clinics. The study shows that unanswered questions about sex evokes both negative and positive feelings among the young people.