Background: The affliction of parents with bipolar disorder disrupts their personal, family and social functions and affects their children's physical and mental health in addition to exposing them to the risk of psychological trauma. The purpose of the present study is to investigate Attention Deficit Hyperactivity, Oppositional Defiant and Conduct disorders in school-aged children of parents afflicted with bipolar disorder and to compare the results with the results obtained for school-aged children of healthy parents. 

  Methods: In the present analytical, cross-sectional study, 62 school-aged children with a parent afflicted with bipolar disorder and 62 school-aged children with normal parents were sampled through the convenience sampling method. Farshchian teaching hospital of Hamadan became the research environment in 2013-14. The data collection tool was the parent version of the CSI-4 and the Mood Disorder questionnaire. Data were analyzed in SPSS/18 using the Kolmogorov-Smirnov test, the two independent samples t-test and the chi-squared test.

  Result: There was a significant difference between the mean scores obtained by the case group in the assessment of Attention Deficit Hyperactivity, Oppositional Defiant and Conduct disorders and the mean scores obtained by the control group (p<0.001)

  Conclusion: The findings showed that the children of parents with bipolar disorder are exposed to numerous traumas, including the Attention Deficit Hyperactivity disorder, the Oppositional Defiant disorder and the Conduct disorder and therefore require more care, treatment and follow-up.