Background: Deliberate self-harm and the consumption of psy- choactive substances are important public health problems among adolescents.
Aim: To determine the association of deliberate self-harm with the consumption of psychoactive substances, in school adolescents in Colombia.
Material And Methods: A survey about deliberate self harm and psychoactive substance use during the last 12 months was answered by 80 018 adolescents aged between 12 and 18 years.