Partner Abuse, Volume 5, Number 1, 2014 98 © 2014 Springer Publishing Company http://dx.doi.org/10.1891/1946-6560.5.1.98 Childhood Abuse and Women’s Use of Intimate Partner Violence: Exploring the Role of Complex Trauma Kimberly R. Flemke, PhD, LMFT Private Practice, Philadelphia, Pennsylvania Jennifer W. Underwood, MSW Katherine R. Allen, PhD Virginia Polytechnic Institute and State University Much research now indicates significant long-term effects for individu- als who have experienced various forms of abuse in childhood. Recent re- search also has examined the role of women as perpetrators of intimate partner violence (IPV), including potential factors that contribute to their use of violence. One trend revealed in the research is that many of the women who engaged in acts of IPV also had a history of experiencing one or more types of childhood abuse (e.g., physical or sexual abuse, or witnessing family violence). This article discusses the specific framework of complex trauma as a theoretical model to understand how unresolved triggers of childhood trauma may potentially serve as ongoing catalysts for women’s IPV. Using the lens of complex trauma illuminates the critical interpersonal factor yet to be studied thus far, which suggests that many women’s IPV experiences may be rooted in having childhood traumas triggered by their intimate partner. Suggestions for treatment are recommended as exploring the intersection between past trauma and present violence, which seems to be the key for unlocking important answers in treating violent women and decreasing IPV. KEYWORDS: child abuse; complex trauma; intimate partner violence (IPV); trauma; women offenders viewpoint and theory