The World Anti-Doping Agency could investigate if evidence shows that male ski jumpers are injecting their penises to improve sporting performance. In January, German newspaper Bild, reported that jumpers were injecting their penises with hyaluronic acid before being measured for their suits. Hyaluronic acid can be used to increase penis circumference by one or two centimetres. This would increase the surface area of their suits during competition, which, according to the international ski and snowboard federation, could increase their flight in the air. Tap the link in BBCNews's bio for more on this story. #SkiJump #BBCNews