This study aimed to analyze the support network reported by adolescents dealing with violent situations in affective and sexual relationships. A quantitative approach was used for the epidemiological component and a qualitative approach for the data from interviews and focus groups. The sample consisted of 283 adolescents from 15 to 19 years of age who were sophomores at public and private high schools in Porto Alegre, Rio Grande do Sul State, Brazil. The quantitative data were analyzed by description of frequencies and analysis of associations between variables. For the qualitative data, thematic content analysis was used. The results showed that only 5% of the adolescents sought help for problems resulting from violence, and when they did so, they mainly turned to friends and family. Few adolescents cited healthcare professionals as a source of support. The study highlights the need to inquire into the implications for the healthcare system in the prevention of violence and health promotion for adolescents, aimed at the adoption of healthy relationships.