Borderline Personality Disorder or Emotionally Unstable Personality Disorder is characterised by unstable emotions, intense anger, chronic feelings of emptiness, fear of abandonment, recurrent self-harm and transient psychotic experience. Borderline Personality Disorder is caused by childhood adversity including physical or emotional abuse, invalidating environment in family and intense conflict in family. The onset is at adolescence and continues into adulthood. Borderline Personality Disorder is associated with depression, binge eating and substance misuse.