Research on sensitive issues such as abuse and violence in vulnerable populations poses several ethical dilemmas. An important aspect is the impact of such enquiries on one's mental health. This paper discusses specific ethical issues related to mental health based on violence research conducted and reviewed by the authors. Research on violence among women includes the possibility that some revelations are occurring for the first time and are likely to be emotionally charged. Further, the very act of disclosure may involve emotional risks for the respondent. Psychological distress may be present prior to, during, or following the study. Hence assessing mental health parameters becomes essential and integral to research of this nature.