The purpose of this article is to present the current understanding of hair-pulling disorder and the proposed treatment of this disorder based on a cognitive behavior therapy model. The basic symptom of hair-pulling disorder, also known as trichotillomania, is a repetitive behavior, i.e. hair-pulling. It is a complex disorder both with respect to the diverse pattern of hair-pulling in particular individuals, as well as its occurrence at different stages of development. Hair-pulling disorder has been the subject of greater interest among clinicians and researchers since the 1990s. Therefore, it is an area in which only recently more scientific research and education of clinicians has been conducted. In more recent literature, there is a visible tendency to place hair-pulling disorder within the framework of a broader diagnostic category defined as body-focused repetitive behaviors. This term has just started to appear in reviews of the classifications of mental disorders. The cognitive behavior therapy for body-focused repetitive behaviors is the treatment of choice. The Comprehensive Behavioral Model developed by Charles S. Mansueto constitutes one of the main conceptualizations of the hair-pulling disorder in this therapeutic approach. Currently, it is necessary to continue studies on the efficacy of psychotherapy based on Mansueto’s model as well as other cognitive behavior programs intended for individuals with body-focused repetitive behaviors so that the patients can utilize helpful treatment options consistent with the standards of evidence-based psychotherapy.