In article was presented characteristic features of mental disorders from spectrum obsessive compulsive disorder, dysmorphic disorder and spectrum impulse control disorders. Dysmorphophobia is a psychiatric disorder characterized by imagined aesthetic defect in physical appearance in spite of visual changes. This paper is a review of the up-to-date knowledge on prevalence, diagnostic criteria and clinical picture of body dysmorphic disorder. The authors underline the connections between this disorder and other disorders, classified by some authors, as a part of the obsessive compulsive disorder spectrum. The problem with distinguishing the psychotic feature of body dysmorphic disorder is presented in this paper.