Tests and diagnosis

By Mayo Clinic Staff

Narcissistic personality disorder is diagnosed based on:

  • Signs and symptoms
  • A thorough psychological evaluation that may include filling out questionnaires
  • 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. Also, it's possible to be diagnosed with more than one personality disorder at the same time.

Nov. 18, 2014