Cyberbullying and Adolescent Mental Health: Clinician Update from a Systematic Review

Casaña Mohedo and colleagues report a PRISMA 2020 systematic review synthesizing 42 studies of adolescents aged 10–19 years on cyberbullying victimization and mental health outcomes.

Across included studies, cyber-victimization was described as common but inconsistently defined and assessed, complicating direct comparisons across settings and samples. In the review’s prevalence synthesis, the median estimate for victimization was 19.1%, with individual study estimates spanning 2.1% to 88.0%. The authors organize the synthesis around reported drivers of prevalence variability, internalizing symptoms and suicidality, subgroup differences, bystander dynamics, and multi-setting approaches described as prevention or intervention.

Variation in definitions (for example, what behaviors qualify, what timeframe is queried, and whether analyses separate victims, aggressors, and bully–victims) is repeatedly noted as a core feature of the evidence base. The authors also describe measurement differences across studies, including varied self-report tools and thresholds for involvement, which influenced how often victimization was captured and how outcomes were summarized. Within this heterogeneity, the review reports higher depressive symptoms among cyberbullying victims than among non-involved peers, with depression reported at 90% among victims in the review’s synthesis. Where roles were compared, victims were described as having higher depression metrics than adolescents not involved in cyberbullying, while aggressors were reported as having lower depression levels than victims in the same source material. Overall, the synthesis links victimization with higher reported depression indicators across varied study approaches.

Anxiety was treated as a distinct internalizing domain in the included literature, and the review similarly describes higher anxiety among victimized adolescents compared with non-involved peers, with anxiety reported at 87% among victims in the review’s synthesis. For suicidality, the authors summarize reported differences by role, including suicide attempts observed in 19.0% of victims versus 3.0% of aggressors in the compiled evidence. The review also reports self-harm in 28.9% of victims in the studies that contributed those data, alongside broader descriptions of suicidal ideation and related behaviors across settings. Across these outcomes, the review describes elevated self-harm and suicidal behavior metrics among adolescents reported as cyberbullied.

Subgroup patterns are described as non-uniform, with certain populations presented as disproportionately exposed or affected. In the review’s synthesis, adolescents with autism spectrum disorder were reported to have particularly high victimization prevalence, ranging from 64.1% to 68.9% in the cited clinical subgroup data. The authors also characterize heightened vulnerability among females and LGBTQ+ adolescents, describing greater susceptibility to victimization and more internalized symptom profiles in the studies they summarize. Additional contextual or demographic factors named across the review include differences by sex-linked roles (victim versus aggressor), age or developmental stage, geographic context (including rural versus urban environments), family communication and support, school climate and supervision, and socioeconomic indicators used in some studies. Overall, the review frames risk as patterned across identifiable subgroups and contexts rather than evenly distributed.

Bystanders are presented as active participants in cyberbullying events rather than neutral observers, with the review describing multiple functional roles, including passive reinforcement (for example, amplifying harmful content) and prosocial “upstander” behaviors (such as supporting the target or seeking mediation). The authors place these roles within a socio-ecological framing in which individual skills, peer dynamics, family context, school environment, and platform-level features interact with exposure and response. Within that framing, the review reports that prevention and intervention approaches described in the included literature span schools, families, healthcare services, and technology platforms, and the authors describe recommendations for modernized cyber-education that incorporates interactive tools such as “serious games.”

The review’s summary situates response strategies across multiple settings and participant roles, emphasizing that witnesses, targets, and aggressors each appear in the intervention landscape described by the included studies.

Key Takeaways:

• Cyber-victimization prevalence was reported across a wide range of estimates, reflecting heterogeneous definitions and measurement approaches in the included studies.
• Across outcomes, the review summarizes a pattern of higher reported depression and anxiety metrics, along with higher self-harm and suicidal behavior metrics, among victimized adolescents compared with non-involved peers (and, in some comparisons, aggressors).
• The authors highlight subgroup and socio-ecological themes, including higher reported vulnerability in ASD, female, and LGBTQ+ populations and the described influence of bystander roles alongside multi-setting approaches spanning schools, families, healthcare, and platforms.