Menstruation is one of the oldest and most far-reaching taboos. Especially in India and across South Asia, the reluctance to speak about periods is widespread, resulting in worryingly low education and awareness – particularly among the demographic of adolescent girls, of whom India has some 120 million. A recent study for Menstrual Hygiene Day reported that 1 out of 3 school girls across South Asia was not aware of periods before experiencing one for the first time, and only 2.5% of the same group knew that menstrual blood came from the uterus. If menstrual hygiene is not given importance, it will raise the risk of reproductive infections and affect the health of millions of girls who are unaware of the stark consequences.