Borderline Personality Disorder Classification: Personality disorders Things You Might Notice Noticeably severe mood swings Evidence or threats of self-injury Fear of being left alone for any period Aggressive or significantly irritable behavior Over-sharing personal details, especially with people they don't know well Threats of suicide or suicide attempts Diagnostic Criteria A pervasive pattern of instability of interpersonal relationships, self-image. and affects as well as impulsivity. Symptoms begin by early adulthood and present in a variety of contexts, as indicated by 5 (or more) of the following: Frantic efforts to avoid real or imagined abandonment A pattern of unstable and intense interpersonal relationships characterized by alternating between idealization and devaluation Identity distrubance: markedly and persistently unstable self-image or sense of self Impulsivity in at least two areas that are potentially damaging Recurrent suicidal behavior, gestures, or threats, or self-mutilating behavior Affective instability due to a marked reactivity of mood Chronic feelings of emptiness Inappropriate, intense anger or difficulty controlling anger Transient, stress-related paranoid ideation or severe dissociative symptoms