Objective: This study aimed to investigate the effects of the personality traits and perfectionism in predicting core self-evaluations of women with trichotillomania and healthy women.Methods: This was a cross-sectional study. A total of 50 women affected with trichotillomania (age-matched with 50 normal women) were selected by convenience sampling method from counseling centers of Tabriz City, Iran. The participants completed the NEO Five Factor Inventory, perfectionism, and core self-evaluation scales. Data were analyzed by the stepwise multiple regression using SPSS16. Results:The results indicated that the neuroticism and conscientiousness traits predict core self-evaluations in the normal women. Moreover, the neuroticism and openness to experience also predicted the core self-evaluation in those with trichotillomania, while the perfectionism could not predict core self-evaluation. Conclusion:In this study, findings showed that personality traits contribute to predict core self-evaluations of women with trichotillomania and healthy women.