Work-related violence has been recognized as an increasing occupational hazard in the recent years. The current study aims to identify the risk factors of mental health problems that contribute to work-related v iolence among security guard. A cross-sectional study was designed involving 445 security guards as the participants. Eight psychometric instruments were used to collect the data and the analyses were conducted using statistical applicat ion. The findings showed that presence of five

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... types of mental health problems were notable among the part icipants, considering that the population is not within psychiatric or prison settings. Two causes of mental health problems, childhood trauma experiences, and stress were found significantly related to the five subtypes of mental health problems among the participants. The five subtypes of mental health problems on the other hand were significantly related to aggression. In conclusion, stress and childhood traumas were identified as possible risk factors for mental health problems among security guard. On the other hand, mental health problems are the risk factors for aggressive acts and therefore, risk factors for workp lace vio lence among the security guard.