<unk>  is defined by a pervasive and persistent disregard for morals, social norms, and the rights and feelings of others. Although behaviors vary in degree, individuals with this personality disorder will typically have limited compunction in exploiting others in harmful ways for their own gain or pleasure, and frequently manipulate and deceive other people. While some do so through a façade of superficial charm, others do so through intimidation and violence. They may display arrogance, think lowly and negatively of others, and lack remorse for their harmful actions and have a callous attitude towards those they have harmed. Irresponsibility is a core characteristic of this disorder; most have significant difficulties in maintaining stable employment as well as fulfilling their social and financial obligations, and people with this disorder often lead exploitative, unlawful, or parasitic lifestyles. Those with<unk>  are often impulsive and reckless, failing to consider or disregarding the consequences of their actions. They may repeatedly disregard and jeopardize their own safety and the safety of others, which can place both themselves and other people in danger. They are often aggressive and hostile, with poorly regulated tempers, and can lash out violently with provocation or frustration. Individuals are prone to substance use disorders and addiction, and the non-medical use of various psychoactive substances is common in this population. These behaviors can in some instances lead such individuals into frequent conflict with the law, and many people with<unk>  have extensive histories of<unk>  behavior and criminal infractions stemming back to adolescence or childhood. Moderate to serious problems with interpersonal relationships are often seen in those with the disorder. People with<unk>  usually form poor or reduced attachments and emotional bonds, and interpersonal relationships often revolve around the exploitation and abuse of others. They may have difficulties in sustaining and maintaining relationships, and some have difficulty entering them. Conduct disorder While<unk>  is a mental disorder diagnosed in adulthood, it has its precedent in childhood. The DSM-5's criteria for<unk>  require that the individual have conduct problems evident by the age of 15. Persistent<unk>  behavior, as well as a lack of regard for others in childhood and adolescence, is known as conduct disorder and is the precursor of<unk> . About 25–40% of youths with conduct disorder will be diagnosed with<unk>  in adulthood. Conduct disorder (CD) is a disorder diagnosed in childhood that parallels the characteristics found in<unk>  and is characterized by a repetitive and persistent pattern of behavior in which the basic rights of others or major age-appropriate norms are violated. Children with the disorder often display impulsive and aggressive behavior, may be callous and deceitful, and may repeatedly engage in petty crime such as stealing or vandalism or get into fights with other children and adults. This behavior is typically persistent and may be difficult to deter with threat or punishment. Attention deficit hyperactivity disorder (ADHD) is common in this population, and children with the disorder may also engage in substance use. CD is differentiated from oppositional defiant disorder (ODD) in that children with ODD do not commit aggressive or<unk>  acts against other people, animals, and property, though many children diagnosed with ODD are subsequently re-diagnosed with CD. Two developmental courses for CD have been identified based on the age at which the symptoms become present. The first is known as the "childhood-onset type" and occurs when conduct disorder symptoms are present before the age of 10 years. This course is often linked to a more persistent life course and more pervasive behaviors, and children in this group express greater levels of ADHD symptoms, neuropsychological deficits, more academic problems, increased family dysfunction, and higher likelihood of aggression and violence. The second is known as the "adolescent-onset type" and occurs when conduct disorder develops after the age of 10 years. Compared to the childhood-onset type, less impairment in various cognitive and emotional functions are present, and the adolescent-onset variety may remit by adulthood. In addition to this differentiation, the DSM-5 provides a specifier for a callous and unemotional interpersonal style, which reflects characteristics seen in psychopathy and are believed to be a childhood precursor to this disorder. Compared to the adolescent-onset subtype, the childhood-onset subtype, especially if callous and unemotional traits are present, tends to have a worse treatment outcome. Comorbidity<unk>  commonly coexists with the following conditions: When combined with alcoholism, people may show frontal function deficits on neuropsychological tests greater than those associated with each condition. Alcohol Use Disorder is likely caused by lack of impulse and behavioral control exhibited by<unk>  patients. The rates of<unk>  tends to register around 40-50% in male alcohol and opiate addicts. However, it is important to remember this is not a causal relationship, but rather a plausible consequence of cognitive deficits as a result of<unk> .
Antisocial personality disorder
Sadistic personality disorder
Obsessive–compulsive personality disorder
Psychopathy
Haltlose personality disorder
Histrionic personality disorder
Self-defeating personality disorder
Organic personality disorder