Review the multidisciplinary approach of ADHD and its relationship with self-injurious behavior. Expose the use of projective techniques in the diagnosis and treatment of psychiatric disorders.Aggressive, opposition, defiant and disobedience behavior are becoming more frequent in the child population. There have been an increase number of adolescents, who self-harm, since 1960.A 17-year-old girl, with the following psychiatric history: consultations since 2009; one income in the Day Child Hospital; and two incomes in the Inpatient Childhood and Youth Unit. This year, the patient has gone to the emergency room twice by self-harm episodes the days before concerts at the conservatory. Her schoolteachers refer concentration problems. She behaves with contempt for the rules at home. The family relationships are mismatched.The multidisciplinary intervention was based on personal, family and group therapies, cognitive behavioral therapy and pharmacotherapy (Methylphenidate). We are currently working on the control of self-injurious behavior with: strategies to regulate emotions, which are based on troubleshooting (“brain storming”), social skills training (role-playing), recognition and anger management.ADHD is a major health problem in children. The combination of pharmacotherapy, psychotherapy, social interventions with educational guidance, self-training activities achieves better results when performed independently. The prevalence of self-harm behavior is greater in young people with psychiatric disorders. Self-harm behaviors are often strategies to regulate the emotional pain. The graphic techniques express emotions, feelings and fantasies. They can help resolve conflicts, develop interpersonal skills and reduce stress. The pictures allow only formulate hypothesis, we must contrast them with other tests.