What are the endometrial changes during the menstrual cycle

The changes of endometrium in menstrual cycle are mainly divided into three stages, including menstrual period, proliferative period and secretory period.

1, menstrual period

This period is generally in the first 4 days of menstrual cycle, the endometrium gradually exfoliates, forming menstruation, the thickness of the endometrium is in the thinnest state.

2, proliferative period The

endometrium begins to proliferate under the action of estrogen, and gradually thickens.

3, secretory period

In the second half of menstrual cycle, along with luteal secretion of progesterone, estrogen, can promote the endometrium to continue to thicken, reaching the thickest state in menstrual cycle.