The primary characteristic of borderline personality disorder is instability. There is a tendency for unpredictable behavior and erratic changes of mood, which results in a pattern of rocky relationships, inconsistent self-image, and rollercoaster emotions. Criteria for Diagnosing Borderline Personality Disorder: As described above, there must be an ongoing pattern of instability in interpersonal relationships, self-image,Continue reading “What is Borderline Personality Disorder?”