This article presents a review of knowledge regarding post-traumatic stress disorder (PTSD) in women experiencing intimate partner violence. Knowledge related to the prevalence and predictors of PTSD in battered women, the association between PTSD and physical health, and the emerging science regarding PTSD and physiological and immune parameters is addressed. Primary recommendations for future research includes the need for longitudinal and intervention research that incorporates a range of psychosocial and physiologic health outcomes.