Personality traits reflect the individual's mental ability /efficiency and should be addressed when guiding people to choose a career or field of study. Studies have shown that some people with high IQs are not suitable for certain fields of study or work because they lack certain personality traits and can instead achieve significant success in other academic /career environments. →What this article adds: Given the lack of similar studies and the need for research in this field, especially in Iran, and since the results of this study may be of use to help encourage the choice of a medical specialty in accordance with personal characteristics, the present study was conducted to examine and compare occupational burnout scores in medical residents with different specialties.