personality disorder, affecting about 6.2% of the population1. It is one of ten personality disorders listed in the Diagnostic and Statistical Manual of Mental Disorders (DSM-5).
Along with histrionic, antisocial, and borderline personality disorders, NPD is a Cluster B disorder, which causes affected individuals to appear erratic, emotional, or dramatic.Though symptoms may manifest in different ways, people with NPD experience at least five of the following2:[Self-Test: Borderline Personality Disorder]Though the DSM symptoms are used to diagnose NPD, the following associated features may help clinicians support a diagnosis.
These can include3:Though both the DSM-5 and popular ideas of narcissism center on open arrogance, NPD researchers identify two different subgroups: grandiose and vulnerable.Grandiose narcissism is the familiar self-important expression of narcissism.
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