Signs and symptoms of narcissistic personality disorder may include:
Grandiose sense of one's own abilities or achievements
Fantasies about having exceptional power, attractiveness or success
Sense of belonging to an exclusive group of people who truly understand each other
Need for constant praise
Expectations of special treatment
Exploitation of other people
Lack of empathy for other people
Envy of other people or a belief that you are the subject of other people's envy
Haughty or arrogant behaviors
Reacts to criticism with feelings or rage, shame, or humiliation
Individuals with narcissistic personality disorder may come across as conceited or snobbish. They often monopolize conversation. They may belittle or look down on people they perceive as inferior. When they don't receive the special treatment to which they feel entitled, they may become very impatient or angry.