Fewer than 200K US narcissistic cases are diagnosed per year making narcissism a rare disease. Narcissistic personality disorder is found more commonly in men with symptoms that include an excessive need for admiration, disregard for others’ feelings, an inability to handle any criticism, and a sense of entitlement. The cause is unknown but likely involves a combination of genetic and environmental factors. Unfortunately there is no cure, but talk therapy can help after professional diagnosis.
Psychology Today writes that narcissism causes friction in relationships due to lack of empathy. It may also manifest as antagonism, fueled by grandiosity and attention-seeking. Narcissists see themselves as superior, viewing everyone else as inferior and may be intolerant of disagreement or questioning.
Narcissists have a hunger for appreciation or admiration, a sense of specialness and a desire to be the center of attention, and an expectation of special treatment reflecting perceived higher status. These traits and others can prove damaging in relationships whether romantic, familial or professional. In addition to thinking they are better and more deserving than others, research suggests narcissists often admit to an awareness that they are more self-centered.