The world’s population just topped 7 Billion in October 2011! This unique moment in human history represents both an opportunity and a challenge, and will have an impact on every single person on the planet. Obstetric fistula is one of the most devastating consequences of unequal access to health care during pregnancy and childbirth. Its persistence is a sure signal that health systems in many low income countries are failing to meet the needs of women, a challenge that will be more and more difficult to address as the population grows. A world of 7 Billion has implications for sustainability, access to health services and youth empowerment. However, it also offers a rare opportunity to renew global commitment for a healthy and sustainable world. Tell us how you are making a difference to End Fistula. Share on Facebook and Twitter or learn how to get involved .