Conduct disorder is a behavior disorder, sometimes diagnosed in childhood, that is characterized by antisocial behaviors that violate the rights of others and age-appropriate social standards and rules.

Antisocial behaviors may include irresponsibility, delinquent behaviors, violating the rights of others (such as theft) and / or physical aggression toward others (such as physical assault or rape). These behaviors sometimes occur together; however, one or several may occur without the other.