She received praise both in China and worldwide for her comments - which sought to break taboos around discussing menstruation. Chinese swimmer Fu Yuanhui said she had performed poorly in the 4xm medley relay because her period had started the day before. The swimming superstar was seen crouched down and clearly in pain after the women's 4xm medley relay. It will have raised the profile of tampons in China - where only two per cent of the population use them - with many completely unaware they are an option, she said. Even in the West, more people still use sanitary pads than tampons, largely due to overblown concerns about toxic shock syndrome, asbestos or due to a fear of touching their own blood.