Both fatal and non-fatal assaults involving young people contribute greatly to the global burden of premature death, injury and disability. Youth violence deeply harms not only its victims, but also their families, friends and communities.

There are close links between youth violence and other forms of violence. Violent young people frequently commit a range of crimes and display other social and psychological problems.


In 2000, an estimated 199000 youth murders took place globally – equivalent to 565 children and young people aged 10-29 years dying on average each day as a result of interpersonal violence. Rates for youth homicide, though, vary consider­ably by region and by country, and female rates are almost everywhere much lower than male rates.

In the decade 1985-1994, youth homicide rates increased in many parts of the world – a growth associated in many cases with a more frequent use of guns as the method of attack.

For every young person killed by violence, an esti­mated 20-40 receive injuries that require hospital treatment.

Non-fatal violent injuries involve substantially fewer firearm attacks than do fatal assaults and involve a greater use of the fists, feet, knives and clubs.

Studies show that drunkenness is an important immediate situational factor than can precipitate violence.

Physical fighting and bullying are also common among young people. A study of school-aged children in 27 countries found that the majority of 13-year-olds in most of the countries surveyed had engaged in bullying at least some of the time.


Individual factors

The principle personality and behavioural factors linked with youth violence are:

  • hyperactivity
  • impulsiveness
  • poor behavioural control
  • attention problems
  • history of early aggressive behaviour
  • low educational achievement.

Influences by family and peers

The home environment is key to the development of violent behaviour in young people. Some of the key family factors associated with adolescent violence are:

  • poor supervision of children by parents and harsh physical punishment to discipline children
  • parental conflict in early childhood
  • a low level of attachment between parents and children
  • a mother who had her first child at an early age
  • experiencing parental separation or divorce at a young age
  • a low level of family cohesion
  • low socioeconomic status of the family.

Associating with delinquent peers has also been linked to violence in young people.

Social, political and cultural factors

  • Gangs and a local supply of guns and drugs are a potent mixture, increasing the likelihood of youth violence.
  • Low levels of social cohesion within a commu­nity have been linked to higher rates of youth violence.
  • The quality of a country’s governance – its laws and the extent to which they are enforced, as well as policies for social protection – has an important effect on violence.
  • Factors such as income inequality, rapid demo­graphic changes in the youth population, and urbanization have all been positively linked with youth violence.
  • Cultures that do not provide non-violent alter­natives for resolving conflicts appear to have higher rates of youth violence.


A variety of approaches have been tried to reduce violent behaviour among young people. The most common interventions seek to change individuals’ skills, attitudes and beliefs. These types of pro­grammes are frequently carried out in school set­tings and are designed to help children and ado­lescents manage anger, resolve conflict, and develop the necessary social skills to solve prob­lems.

Another common set of prevention strategies addressing youth violence focuses on early inter­vention with children and families. Such pro­grammes provide parents with information about child development and teach them how to effec­tively discipline, monitor and supervise children, as well as how to manage family conflict and improve communication. Parent and family-based interventions are among the most promising strategies for producing long-term reductions in youth violence.

Other approaches focus on community settings and some of the more prominent societal factors related to youth violence. They range from public information campaigns and community policing to improving settings such as schools and hospi­tals. Also included are legislative, judicial, and educational reforms as well as other policy reforms designed to mitigate the effects of rapid social change and tackle gun violence among youths. Most of these approaches, though, have not been evaluated.

a Demonstrated to be effective in reducing youth violence or risk factors for youth violence. b Shown to be ineffective in reducing youth violence or risk factors for youth violence.