Tests and diagnosisBy Mayo Clinic staff
Narcissistic personality disorder is diagnosed based on signs and symptoms, as well as a thorough psychological evaluation that may include filling out questionnaires.
Although there's no laboratory test to diagnose narcissistic personality disorder, you may also have a physical exam to make sure you don't have a physical problem causing your symptoms.
Some features of narcissistic personality disorder are similar to those of other personality disorders. It's possible to be diagnosed with more than one personality disorder at the same time.
To be diagnosed with narcissistic personality disorder, you must meet criteria spelled out in the Diagnostic and Statistical Manual of Mental Disorders (DSM). This manual is published by the American Psychiatric Association and is used by mental health providers to diagnose mental conditions and by insurance companies to reimburse for treatment.
Criteria for narcissistic personality disorder to be diagnosed include:
- Having an exaggerated sense of self-importance
- Being preoccupied with fantasies about success, power or beauty
- Believing that you are special and can associate only with equally special people
- Requiring constant admiration
- Having a sense of entitlement
- Taking advantage of others
- Having an inability to recognize needs and feelings of others
- Being envious of others
- Behaving in an arrogant or haughty manner
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