Menstrual health is central to each woman's ability to lead lives of dignity and well-being in every part of the world. Yet, lack of access to affordable feminine hygiene products is a widely overlooked issue, which has a profound and cascading negative impact on the health, education and productivity of millions of girls and women, especially in emerging economies. In East Africa, four in five women do not have regular access to sanitary pads or related reproductive health education. In a region where over 40% of females are under the age of 15, this is a rapidly escalating problem.