Gender-based violence results in physical, sexual, and psychological harm to both men and women. It takes many forms including intimate partner violence, sexual violence, female genital cutting, and human trafficking. Globally, 1 in 3 women experience physical or sexual violence by a partner in their lifetime. Gender-based violence negatively impacts women's health across their lifespan from pregnancy to elder abuse. It is associated with poor maternal and infant health outcomes like preterm birth and low birthweight. Addressing gender-based violence requires understanding socio-cultural, legal, economic, and institutional factors as it is a core health issue requiring a healthcare response.