Increasing demand for disposable menstrual management products globally can have significant effects on sanitation system sustainability, particularly in low- and lower-middle- income countries. However, the interaction of menstrual hygiene management and sanitation systems is a largely under-explored concern in health and hygiene research. Using nationally representative Demographic and Health Survey (DHS) data from 58 developing countries, we show number of females menstruating globally, regionally and by age group. In order to understand the degree to which menstrual hygiene practices and waste disposal interface with particular sanitation system types, we estimate the number of women menstruating by broad categories of sanitation facilities in each region and globally. Finally, we make use of international trade flow data to characterize the dramatic expansion of imports to developing countries of menstrual products.