In the case of women of childbearing age who have sex with less vaginal discharge, the following causes are common. The first one is the decrease of estradiol, which is caused by endocrine disorder and decrease of estradiol. It is recommended to have a blood test for sex hormone 6 and then to intervene clinically. The second one is caused by premature ovarian failure. When the ovaries fail prematurely, the increase of follicle stimulating hormone will lead to the decrease of estradiol, so the discharge will also decrease. The third is caused by certain diseases, such as surgery on the cervix, which reduces the secretion of the cervical glands and can lead to a decrease in secretion during sex. In addition, in menopausal women, the level of estrogen decreases sharply after the decline of ovarian function, so the vaginal discharge may also decrease.