Inequalities based on gender exist basically in every country and in all aspects of social life, and are echoed in the vast divides between men and women in their ability to access, manage and benefit from water, sanitation and hygiene. A large and growing body of studies suggests that women and men often have differentiated access, use, experiences and knowledge of water, sanitation and hygiene. Cultural, social, economic and biological differences between women and men consistently lead to unequal opportunities for women in the enjoyment of the HRtWS, with devastating consequences for the enjoyment of other human rights and gender equality more generally.