This research aimed to investigate the conception that teenagers have about their own sexual behavior, as well as verify which evaluation they make about their first sensual contacts and what they think of the experiences reported by friends. In order to reach the results, we contacted male and female students from 7th grade students in elementary school to 2nd grade of high school in a public school in the suburbs of an urban area of Porto Velho - RO. A descriptive nature exploratory study was made, with the concept of quantitative and qualitative methodology, using both open and closed questionaire answers as a tool. It was found that teenagers, even knowing contraceptive methods and prevention of sexually transmitted diseases, start their sexual lives exposing themselves to risks. However, they believe that they are protected from the risks of insecure sex, but, on the other hand, they say their friends do not behave the same way.
Adolescent; Sexuality; Vulnerability; Public health
