Study of the Relationship Between Cyberbullying and Mental Health in Adolescents—A Systematic Review

BACKGROUND: Cyberbullying has emerged as a major public health concern with profound psychological repercussions on the adolescent population. The shift toward virtual communication has fundamentally altered interpersonal dynamics, removing the spatio-temporal barriers of aggression and creating new challenges for mental health. METHODS: A systematic review was conducted following PRISMA 2020 guidelines, including a comprehensive update executed in February 2026. Searches were performed across PubMed, EBSCO, Web of Science, and Scopus. The review included observational and experimental studies involving adolescents (aged 10-19 years) reporting clinical mental health outcomes. Methodological quality was assessed using the Joanna Briggs Institute (JBI) critical appraisal tools. RESULTS: Forty-two high-quality articles were selected. Key findings include the following: Prevalence: A median cyber-victimization prevalence of 19.1% was identified, although significant methodological heterogeneity exists with ranges between 2.1% and 88.0%. CLINICAL IMPACT: Victims exhibited significantly elevated rates of depression (90%) and anxiety (87%) compared to uninvolved peers. Suicidality: Victimization is a critical risk factor, with suicide attempts reported in 19.0% of victims, compared to 3.0% in aggressors. Vulnerable Groups: Adolescents with autism spectrum disorder (ASD) demonstrated extreme vulnerability, with victimization rates between 64.1% and 68.9%. Additionally, females and LGBTQ+ youth showed a higher risk of symptom internalization and post-traumatic stress. The Role of the Bystander: Observers experienced fear, moral frustration, and helplessness, acting as either passive reinforcers or active upstanders depending on the school climate. CONCLUSIONS AND IMPLICATIONS: Effective prevention requires a socio-ecological approach that transcends the classroom, integrating families, healthcare centers, and technological platforms. A transition toward modernized cyber-education is recommended, utilizing interactive tools and "serious games" to foster empathy.