Objectives : The aim of this study was to analyze self-perceived oral malodor symptoms and associated factors among adults in metropolitan area. Methods : This research was based on self-perceived oral malodor symptoms survey in 413 adults from March 5 to May 7, 2012. Data were analyzed with chi-square test, and stepwise multiple regression analysis using SPSS WIN 12.0 program and significance level was set at p<0.05. Results : The prevalence rate of self-perceived oral malodor symptoms was 62.7%. The most influencing factors of self-perceived oral malodor symptoms was age. The other factors were self-perception stress level, exercise, and periodontitis in the order. Conclusions : In order to reduce self-perceived oral malodor symptoms, it is necessary to maintain mental and physical soundness basically.