You will not have menstruation during taking Daying-35, because women’s menstruation is due to the decline of estrogen and progesterone in the body, the endometrium will shed when it loses the protection of hormones, which will lead to menstruation, Daying-35 contains estrogen and progesterone, you will not have menstruation during the period of taking the medicine, you will take all the medicine in a box, and stop taking the medicine for 3-5 days before menstruation will occur. Clinically, Daying-35 is a contraceptive pill, but also can treat women’s menstrual disorders, such as polycystic ovary syndrome patients, due to the prolongation of menstruation due to the prolonged absence of menstruation, after taking Daying-35 can be artificially adjusted to the menstrual cycle to about 28 days.