Borderline personality disorder is not a rare disorder. It is estimated that the prevalence of the disorder is about 1-2% of general population. The disorder can be very distressing for the patient and his or her family. It is shown that the patients are not informed about their diagnosis by the psychiatrists. There are some reasons for this, such as avoiding stigma, questions about the validity of the disorder and transference or countertransference which is common in the treatment of this group of patients. However psychoeducation about the disorder is important and useful. It can be helpful to keep the patient's autonomy, it can decrease the anxiety about the symptoms and the sense of isolation which is experienced by the patient (commonly, they thought that they are different from others and their symptoms are unique). By having more information, there is a chance that their cooperation is strengthened and it can lead to better outcome. These reasoning are supported by the evidence. For example, in a randomized trial done by Zanarini and Frankenberg in 2008, they showed that people who had been received some organized sessions of psychoeducation, experienced less impulsivity and stormy relations. It seems that psychoeducation of the family are also useful but studies have mixed results in this field.

Background: Bipolar disorder and borderline personality disorder have some similar symptoms that might confuse the diagnosis. Many experts defend the borderline pathology within the spectrum of bipolar illness. Objectives: This study aimed to compare patients with borderline personality disorder and bipolar disorder from a novel perspective, i. e., personality traits defined by the five-factor model of personality. Methods: This descriptive-analytical study was conducted in Psychiatry Clinics of Tabriz University of Medical Sciences. Consecutive patients diagnosed with borderline personality disorder and bipolar I disorder by a semi-structured clinical interview were enrolled excluding those with comorbidity. The NEO inventory was used to score on five major domains of personality. Results: A total of 60 patients (40 males) completed the study with a mean age of 28. 3 8. 1 years (range: 19-59). Regardless of the diagnosis, patients scored the highest on openness to experience and the least on conscientiousness. There was no significant difference between patients with bipolar mood disorder and patients with borderline personality disorder in terms of five personality dimensions. Males, in general, scored higher than females on conscientious, but male patients with bipolar disorder scored higher on agreeableness and extroversion. Conclusions: This study showed a comparable personality profile between patients with bipolar disorder and borderline personality disorder.

Borderline personality disorder is one of the most problematic psychiatric disorders with aggressiveness and impulsivity as its two main characteristics. Our objective was to determine the efficacy of olanzapine on 20 patients with borderline personality disorder. Results were found to be affirmative in this respect.