Intimate partner violence is one of the most common forms of violence against women and includes physical, sexual, and emotional abuse and controlling behaviours by an intimate partner. Intimate partner violence (IPV) occurs in all settings and among all socioeconomic, religious and cultural groups. The overwhelming global burden of IPV is borne by women. Although women can be violent in relationships with men, often in self-defense, and violence sometimes occurs in same-sex partnerships, the most common perpetrators of violence against women are male intimate partners or ex-partners. By contrast, men are far more likely to experience violent acts by strangers or acquaintances than by someone close to them.