World Health Day, menstrual (Menstrual Hygiene Day, a day that aims to educate women in the field of health, menstrual cycle and understanding menstrual cycle in the 28 May (7 June) by the NGO Wash united, based in Berlin, Germany, has been set.

because the month of May, the fifth month of the year is and many ladies also, on average, five days each month bleeding can be menstrual cycle, women are usually 28 days is May 28 as a symbol for attention to health menstrual is selected