People with antisocial personality disorder have been described as lacking empathy (or the ability to put yourself in someone elses shoes to understand their feelings), and they may often be deceitful or break the law. Antisocial personality disorder is also associated with impulsive behavior, aggression (such as repeated physical assaults), disregard for their own or others safety, irresponsible behavior (such as difficulties sustaining a job), and lack of remorse (such as not feeling bad when they have hurt someone else).
Symptoms of antisocial personality disorder frequently occur alongside symptoms of borderline personality disorder (BPD).
Source: American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders DSM-IV-TR Fourth Edition. American Psychiatric Association: 2000.

