Figure 1.

The revalidated menstrual pictogram. The menstrual pictogram requires women to assess their sanitary product upon changing, by selecting the image that looks the most like the underside of their sanitary product. In Magnay et al. (2014), blood loss (ml) was assigned to each pictogram: 0.5, 1.5, 4, 6.5 and 12.5 for icons 1–5 of the ‘normal’ sanitary products, 0.5, 1.5, 3.5, 6.5 and 12.5 for icons 1–5 for the ‘long’ sanitary products, and 0.5, 2, 4.5, 8 and 14 for icons 1–5 of the ‘night’ sanitary products. Reprinted with permissions from Magnay et al. (2014).