This document discusses intimate partner violence (IPV), including definitions, prevalence, impacts, risk factors, assessment, treatment, and prevention. It defines IPV as physical, sexual, or psychological harm by a current or former partner. National statistics in the US indicate 25% of women and 15% of men experience severe physical IPV, and 50% experience emotional IPV. IPV is associated with mental health issues like PTSD as well as physical health problems. Risk factors include childhood abuse and attachment issues. Treatment focuses on perpetrator intervention, couples therapy in some cases, and preventing revictimization through education and economic resources.