Personality disorders are patterns of maladaptive behavior and communication that persist over many years and interfere with work and personal life. People with personality disorders have difficulty dealing with everyday stresses and problems. Borderline Personality Disorder (BPD) is a persistent pattern of unstable mood, intense and unstable relationships and identity confusion, which often lead to self-injury. Psychotherapy approaches such as Dialectical Behavioral Therapy have been shown to be effective in treating BPD and other personality disorders.