Our current diagnostic criteria for personality disorders have failed to demonstrate validity or reliability.  The DSM 5 encouraged psychiatrists to start considering a broad range of personality features adapted from the Five Factor Model. These are combined with global functioning measures to build a personality inventory for any patient who is having dysfunction related to their personality.  Proposed criteria include a Personality Disorder - Trait Specified diagnostic category that permits diagnosticians to accommodate the new formulation.  Criterion A considers the salient aspects of personality functioning while Criterion B catalogs which of the Big 5 Factors are notably deranged.  Dr. O'Leary reviews the basics of these criteria and explores why our current formulations are in such dire need of reform.

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