Cluster B personality disorders

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Cluster B personality disorders are a categorization of personality disorders as defined in the DSM-IV and DSM-5.[1]

Cluster B personality disorders are characterized by dramatic, overly emotional or unpredictable thinking or behavior and interactions with others. They include antisocial personality disorder, borderline personality disorder, histrionic personality disorder and narcissistic personality disorder.[2]

The British National Health Service has described those with this disorder as someone who, "struggles to relate to others. As a result, they show patterns of behaviour most would regard as dramatic, erratic and threatening or disturbing."[3]

There are four recognized Cluster B personality disorders:[2]

See also[edit]


  1. ^ Kristalyn Salters-Pedneault (May 6, 2016). "Understanding the Cluster B Personality Disorders/The Cluster B Personality Disorders: What Are the Cluster B Personality Disorders?". Verywell. Archived from the original on September 6, 2010.
  2. ^ a b "Personality disorders - Symptoms and causes". Mayo Clinic. Retrieved 26 January 2019.
  3. ^ "Personality disorder". 26 October 2017. Retrieved 26 January 2019.