Cyberbullying (electronic bullying) is a separate area of bullying among teenagers, defined as deliberate aggressive actions systematically carried out by a group or a specific person using electronic forms of interaction and directed against a victim who cannot defend himself.

The aim of the study is to determine the prevalence of cyberbullying among adolescents and assess the impact of bullying on children’s behaviour and health.

The following databases were used in the review: RSCI, PubMed, Google Scholar. The prevalence and causes, diagnosis, clinical manifestations, and prevention of cyberbullying when using electronic devices with Internet access have been established. Destructive behaviour in cyberspace is associated with excessive self-disclosure on social networks and the publication of provocative content, substance use, low levels of friendly support, adverse family environment, and virtual violence. The relationship between cyberbullying by peers and childhood loneliness, depression, aggression, suicidal tendencies, lack of social skills, and impulsive behaviour of adolescents has been established.