More than half of children who are the victims of bullying developed depression as a result of the abuse, according to a survey.
Beat Bullying quizzed 2,000 parents and adults across Europe and found a further 35% of victims began harming themselves and 38% contemplated suicide.
However, the same poll exposed a large minority of adults who consider bullying just part of growing up.
Some 34% thought school yard abuse was inevitable and 16% regarded it as character building.
More top news
69-year-old Roy Hodgson has been out of work since resigning in the wake of England's humiliating Euro 2016 elimination
Tata Steel has committed to the future of jobs and production at Port Talbot and other steelworks in the UK, steel unions have said.
Largely dry across the UK through this evening