Anti-social behaviour

Anti-social behaviours are "age- inappropriate" actions that harm or lack consideration for the well-being of others. Many people also label behaviour which is deemed contrary to prevailing norms for social conduct as anti-social behaviour.

The American Psychiatric Association, in its Diagnostic and Statistical Manual of Mental Disorders, diagnoses persistent anti-social behaviour as antisocial personality disorder. The World Health Organization includes it in the International Classification of Diseases as "dissocial personality disorder". A pattern of persistent anti-social behaviors can also be present in children and adolescents diagnosed with conduct problems, including conduct disorder or oppositional defiant disorder under the DSM-5.