Menstrual cycle

Menstrual cycle is manly occur in the primate. It is 28 days of cycle, it is good reproductive health sing for women. The menstrual cycle occur inregural in women which are suffer from some disease or poor health. Menstrual cycle is the indicator of good health. It repet 28 days. In last 5 days of menstrual cycle menstration is occur means the blood of rupture endometrium is thrown out of the body. The menstruation does not occur is women are pregnent or because of poor health. In each menstrual cycle ovum is relese, when this ovum is not fertilise by an sperm then the menstruation occur.