Antisocial personality disorder (ASPD) is one of ten personality disorders listed in the Diagnostic and Statistical Manual. Personality disorders are enduring patterns of maladaptive behavior that deviate from cultural norms. These maladaptive behaviors impact a person's cognition, affect, interpersonal functioning, and impulse control. In the DSM, personality disorders are divided into three groups A, B and C and ASPD belongs to group B. People with this disorder are among the most dramatic individuals and are characterized by long-standing contempt rights of others. , often crossing boundaries and violating these rights (Firestone et al., 2010). It is important to note that antisocial personality disorder is often called psychopathy or sociopathy in popular culture. However, neither psychopathy nor sociopathy are recognized professional labels used for diagnosis and ASPD and psychopathy are considered two distinct disorders (Gurley, 2009). Because people diagnosed with ASPD can cause great harm to society, there is enormous interest in studying this group, and thanks to this interest and many years of research, we know much more about the ASPD than any other personality disorder. Durand et al., 2008).AetiologyToday's researchers still do not know what actually causes antisocial personality disorder. Although there are many theories about possible causes, most professionals use a biopsychosocial causal model. According to this model, the causes of ASPD are likely a combination of biological, genetic, social, and psychological factors. Examples of social factors include how a person interacts early in their developmental disorder...... middle of article...... (Duggan, 2009). Conclusion People with antisocial personality disorder often lack empathy and tend to be insensitive and cynical. , and disrespectful of the feelings, rights and suffering of others. They may have an inflated and arrogant sense of self-evaluation that ordinary work is beneath them and they may be excessively opinionated, self-confident, or arrogant. They may display a casual, superficial charm and may be verbally charismatic using technical terms that might impress someone unfamiliar with the subject. Their behavior is not easily changed by adverse experience, including punishment, and there is a low tolerance for frustration and a low threshold for aggression, including violence. They also tend to blame others or offer plausible justifications for their behavior, which puts them in conflict with society..