Aggression refers to any behavior that is hostile, destructive, and/or violent. Generally, aggressive behavior has the potential to inflict injury or damage to the target person or object. Examples of aggressive behavior include physical assault, throwing objects, property destruction, self-harming behaviors, and verbal threats. Aggression can have mental aspects, as well.
A number of psychiatric disorders are associated with an elevated risk of aggressive behavior, including posttraumatic stress disorder, conduct disorder, antisocial personality disorder, borderline personality disorder, and attention deficit/hyperactivity disorder.