Objective To investigate the relationship between severity of obsessive-compulsive disorder( OCD) and the family function,and to explore the characteristics of family function in patients with OCD. Methods 84 patients with OCD( study group) and 90 healthy volunteers( control group) were assessed with general information questionnaire,Yale-Brown Obsessive Compulsive Scale( Y-BOCS) and Family Assessment Device( FAD). Results Score of Y-BOCS in study group was significantly positively correlated with factor sc...