The UK is one of the richest countries in the world. But our latest report, Break the Barriers: Girls’ Experiences of Menstruation in the UK, reveals a culture of stigma and silence have turned periods into a hidden public health issue – putting girls' physical, sexual and mental health at risk. Across the UK and around the world, girls’ stories show that periods have been stigmatised for too long. That’s why we’re demanding action through our Menstrual Manifesto, to end the challenges girls face and break down the taboos that continue to make them feel ashamed of their bodies when they have their period.