RT Book, Section A1 Elder, William G. A2 South-Paul, Jeannette E. A2 Matheny, Samuel C. A2 Lewis, Evelyn L. SR Print(0) ID 1106853263 T1 Personality Disorders T2 CURRENT Diagnosis & Treatment: Family Medicine, 4e YR 2015 FD 2015 PB McGraw-Hill Education PP New York, NY SN 9780071827454 LK accessmedicine.mhmedical.com/content.aspx?aid=1106853263 RD 2022/05/22 AB Personality disorders (PDs) are a heterogeneous group of deeply ingrained and enduring behavioral patterns characterized by inflexible and extreme responses to a broad range of situations, manifesting in cognition (ways of perceiving and interpreting self, others, and events), affectivity (range, intensity, lability, and appropriateness of response), interpersonal functioning, and impulse control. PDs impinge on medical practice in multiple ways, including self-destructive behaviors, interpersonal disturbances, and nonadherence. Appropriate physician responses and effective treatments exist for many PDs. Correct diagnosis and proper intervention will help to improve patient outcomes. Borderline personality disorder (BPD) is an extremely debilitating disorder that can significantly interfere with the physician-patient relationship. BPD will receive extra focus in several sections of this chapter.