Aim and Background: The family functioning is a suitable anticipant scale for mental health therefore, the goal of the current study was to compare family functioning of psychiatric disorders . Methods and materials: This study was an analytical descriptive and cross-sectional study that performed on 150 inpatients with anxiety disorders , depressive disorders and bipolar disorders schizophrenia. The data was collected through interview by researcher, using the FDA (Family Function Questionnaire) The data assessed using by SPSS software using descriptive statistics and ANOVA analysis and Kruskal-Wallis . Results: There was significant difference between the mean score of family functioning of patients with anxiety disorders , depressive disorders and bipolar disorders , Also the most difficult area of family functioning was on roles, involvement emotional and overall function (p≤ /05) . Discussion: The results of this study show that anxiety disorders, patients with depression and bipolar disorder are encountered with problem in many aspects of family functioning that will reinforce the role of the family system in mental diseases. So that is necessary to caregivers and family members of patients encourage participating in educational programs.
