psychiatric disorders
Narcissistic Personality Disorder (NPD)
Etiology of Narcissistic Personality Disorder
Limited data about biologic factors that contribute to narcissistic personality disorder suggest there is a significant heritable component. Some theories posit that caregivers may not have treated the child appropriately—for example, by being overly critical or by excessively praising, admiring, or indulgent of the child. Some patients with this disorder have special gifts or talents and become used to associating their self-image and sense of self with the admiration and esteem of others. 