the effectiveness of group cognitive- behavior therapy on reducing body dysmorphic disorder and inter personal sensitivity among high school girls in ahvazcity

background and aim: the aim of this research was study the effectiveness of  group cognitive- behavior therapy on reducing  body dysmorphic disorder and inter personal sensitivity among high school girls in ahvaz city. methods: the first sample included 800 students who were selected with  multi­ stage random sampleing and completed y-bocs-bdd and inter personal sensitivity  subscale of  scl-90, who that gained high score in y-bocs-bdd are selected and under diagnostic interview and  30 subjects who diagnosed body dysmorphic disorder, assigned to two experimental and control group randomly (15 subject in each group).experimental group treated in 12 sessions(60 minutes) of  group cognitive- behavioral therapy. in the end gained post­test from both of group. results: the rare of body dysmorphic disorder  decreased (p<0/01) in experimental group in compare with pre-post test and control group. also, inter personal sensitivity the of experimental group significantly decreased in compare with pre- post and control group. conclusion: finding showed that group cognitive- behavior therapy had important role in reducing body dysmorphic disorder and inter personal sensitivity