What is Narcissism?
A pattern of traits and behaviours which signify infatuation and
obsession with one's self to the exclusion of all others and the
egotistic and ruthless pursuit of one's gratification, dominance
and ambition.
Most narcissists (50-75%, according to the DSM-IV-TR) are men.
The Narcissistic Personality Disorder (NPD) is one of a "family"
of personality disorders (known as "Cluster B"). Other members
of Cluster B are Borderline PD, Antisocial PD and Histrionic PD.
NPD is often diagnosed with other mental health disorders
("co-morbidity")