This thesis documents an exploratory survey study based on quantitative data from 37 unaccompanied minor asylum-seekers between 15 and 18 years of age in Norway. The purpose of the study was to investigate past traumatic events, present everyday hassles and mental health problems in the lives of these adolescents awaiting decision on their asylum-applications. The associations between the traumatic events, hassles and mental health problems were explored. The potential mediator effect of hassles on the link between past traumatic events and mental health problems was also investigated.