Antisocial personality disorder is best understood within the context of the broader category of personality disorders. A personality disorder is an enduring pattern of personal experience and behavior that deviates noticeably from the expectations of the individual's culture, is pervasive and inflexible, has an onset in adolescence or early adulthood, is stable over time, and leads to personal distress or impairment. Antisocial personality disorder is characterized by a pattern of disregard for and violation of the rights of others. The diagnosis of antisocial personality disorder is not given to individuals under the age of 18 and is only given if there is a history of some symptoms of conduct disorder before age 15.