Binge eating disorder (BED) is included into eating disorders that are not otherwise specified in DSM-IV. It is more common among overweight women applied to treatment. In the conducted researches it was found that there was high level psychiatric comorbidity in patients with BED. In addition, it has been emphasized that depression caused relapses after BED treatment. In this article, a case of a young woman that failed obesity treatment and therefore referred to psychiatry clinic has been presented. In her treatment fluoxetine and BDT were used and effective results have been obtained. The patient at the same time followed the diet program given by dietician and was controlled by internal medicine department. Multidisciplinary approach is important in the treatment of obesity. Successful results have been obtained with psychiatric evaluation and with the treatment of psychopathologies.