This document provides an overview of gender-based violence (GBV). It defines gender and GBV, describes the types and consequences of GBV. GBV affects women's physical and mental health, as well as communities. Contributing factors include poverty, alcohol, and history of abuse. The cycle of abuse involves tension building, a violent episode, and calm. Prevention requires changing social norms, health care provider training, and legal/policy reforms. Comprehensive prevention addresses issues before, during and after violence occurs.