Objectives: Recent evidence showed that young adults have low reproductive health and fertility knowledge, and that interventions are needed to increase fertility awareness. The aim of this study was to assess the effectiveness of a brief video in increasing knowledge regarding fertility and infertility in young adults. Methods:A two-arm, parallel-group, randomized controlled trial with a pretest-posttest design was conducted (NCT02607761, ClinicalTrials.gov). The sample was composed of 173 undergraduates answering to a self-report questionnaire. Participants were randomly assigned to be exposed or not to an educational video about reproductive health and infertility (intervention group, n = 89; control group, n = 84).Results: At baseline (T0), participants revealed low knowledge on risk factors and fertility issues, and average knowledge on the definition of infertility. Interaction effects between group and time were found for all variables targeted within the presented video. Participants in the IG significantly increased knowledge on fertility issues, infertility risk factors, and infertility definition. No significant differences in the post-test (T1) were observed in the CG, except for the age of marked decrease in female fertility. Conclusions:A short video intervention is effective in provisionally increasing knowledge on reproductive health and infertility. If future research using longer intervals corroborates our findings, this intervention could be a useful tool in public health prevention campaigns.

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