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How is narcissistic personality disorder diagnosed?

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There are no lab tests to confirm a mental disorder. Many professionals use the Narcissistic Personality Inventory, a list of 40 questions that measures things such as how much attention and power someone craves.

Personality disorders are longstanding, ingrained, dysfunctional patterns of thinking, behaving and relating to other people that can show up as early as age 8, when children start to become aware of how people react to them. People with narcissistic personality disorder tend not to perceive that they themselves may have a mental health problem, and thus may be less likely to see evaluation or treatment.

A recent study at Ohio State University says many people readily admit to being a narcissist. Researchers say they’re probably proud of it and don’t see looking out for No. 1 as a flaw.

From: Narcissistic Personality Disorder WebMD Medical Reference

SOURCES:

MedlinePlus: "Narcissistic Personality Disorder."

American Psychological Association: "Personality."

PsychCentral: “Narcissistic Personality Quiz.”

Konrath, S. Aug. 5, 2014. PLOS One:

Bushman, B. Feb. 12, 2015. Proceedings of the National Academy of Sciences:

Thomas, S. 2008. Journal of Personality Assessment,

Psychologia: “Malignant Narcissism vs. Narcissism vs. Narcissistic Personality Disorder.”

Harvard Business Review: “Narcissistic Leaders: The Incredible Pros, the Inevitable Cons.”

Reviewed by Joseph Goldberg on March 21, 2017

SOURCES:

MedlinePlus: "Narcissistic Personality Disorder."

American Psychological Association: "Personality."

PsychCentral: “Narcissistic Personality Quiz.”

Konrath, S. Aug. 5, 2014. PLOS One:

Bushman, B. Feb. 12, 2015. Proceedings of the National Academy of Sciences:

Thomas, S. 2008. Journal of Personality Assessment,

Psychologia: “Malignant Narcissism vs. Narcissism vs. Narcissistic Personality Disorder.”

Harvard Business Review: “Narcissistic Leaders: The Incredible Pros, the Inevitable Cons.”

Reviewed by Joseph Goldberg on March 21, 2017

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What are the causes of narcissistic personality disorder?

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THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.

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