Narcissistic Personality Disorder: Symptoms & Signs

Medically Reviewed on 9/10/2019

Narcissistic personality disorder is a mental disorder characterized by an established pattern of being fixated on oneself that is reflected in the thoughts, feelings, and actions of the individual, as well as their relationships with other people.

Signs and symptoms associated with narcissistic personality disorder can include a lack of empathy, a disregard for others' feelings, excessive need for admiration, exaggerating one's own importance, preoccupation with success or power, and arrogance. Other symptoms can include grandiosity, apparent callous behavior, unreasonable expectations of favorable treatment, exploitative or domineering behavior, and a sense of entitlement.

Causes of narcissistic personality disorder

Narcissistic personality disorder does not have one single definitive cause. Rather, biological, psychological, and environmental risk factors all likely contribute to its development.

Other narcissistic personality disorder symptoms signs

  • Arrogance
  • Callous Behavior
  • Disregard for Others' Feelings
  • Domineering Behavior
  • Exaggeration of One's Own Importance
  • Excessive Need for Admiration
  • Exploitative Behavior
  • Grandiosity
  • Lack of Empathy
  • Preoccupation With Power or Success
  • Sense of Entitlement
  • Unreasonable Expectation of Favorable Treatment

Kasper, D.L., et al., eds. Harrison's Principles of Internal Medicine, 19th Ed. United States: McGraw-Hill Education, 2015.