Five (or more) of the following criteria, beginning by early adulthood and present in a variety of contexts:
Has a grandiose sense of self-importance (e.g., exaggerates achievements and talents, expects to be recognized as superior without commensurate achievements).
Is preoccupied with fantasies of unlimited success, power, brilliance, beauty, or ideal love.
Believes that he or she is “special” and unique and can only be understood by, or should associate with, other special or high-status people (or institutions).
Requires excessive admiration.
Has a sense of entitlement (i.e., unreasonable expectations of especially favorable treatment or automatic compliance with his or her expectations).
Is interpersonally exploitative (i.e., takes advantage of others to achieve his or her own ends).
Lacks empathy: is unwilling to recognize or identify with the feelings and needs of others.
Is often envious of others or believes that others are envious of him or her.
Shows arrogant,  haughty behaviors or attitudes.
Has a grandiose sense of self-importance (e.g., exaggerates achievements and talents, expects to be recognized as superior without commensurate achievements).
Is preoccupied with fantasies of unlimited success, power, brilliance, beauty, or ideal love.
Believes that he or she is “special” and unique and can only be understood by, or should associate with, other special or high-status people (or institutions).
Requires excessive admiration.
Has a sense of entitlement (i.e., unreasonable expectations of especially favorable treatment or automatic compliance with his or her expectations).
Is interpersonally exploitative (i.e., takes advantage of others to achieve his or her own ends).
Lacks empathy: is unwilling to recognize or identify with the feelings and needs of others.
Is often envious of others or believes that others are envious of him or her.
Shows arrogant,  haughty behaviors or attitudes.
Narcissistic personality disorder
Other personality disorders
Histrionic personality disorder
Mania or hypomania
Dependent personality disorder
Substance use disorders
Paranoid personality disorder
Borderline personality disorder