Intimate partner violence (IPV) and sexual assault are common violent crimes perpetrated on women. Obstetric (OB) complications associated with trauma include miscarriage, preterm labor, and placental abruption. Ongoing mental health issues, including depression and anxiety, are more prevalent in pregnant women subjected to any form of IPV, whether or not direct physical violence is involved. One study showed that pregnant women subjected to verbal threats were twice as likely to deliver low-birth-weight infants. All women who present to an OB triage unit or an emergency department (not just those who present with an injury or complication) must be screened for IPV. An organized plan for providing the victim with resources must be readily available when a screen is positive. This chapter discusses presenting symptomatology, history and data collection, physical examination, laboratory and imaging studies, differential diagnosis, clinical management and follow-up care of IPV and sexual assault.