(July 2005) This is a summary of the longer IGWG “So What” report published in March 2004. The brief, produced through a collaboration between USAID’s Interagency Gender Working Group and WHO’s Department of Gender, Women and Health, presents the conclusions of the longer report, making it clear and accessible to policymakers and program managers. It presents the evidence that integrating gender into reproductive health programs makes a difference to outcomes, both reproductive health outcomes and gender outcomes.