Vaginal secretion is very little, in the clinic is often seen in the following reasons: 1, the most common reason is due to the decline of ovarian function, resulting in the decline of estrogen in the body, the cervical secretion, vaginal secretion will be reduced, vaginal secretion will be less, and dryness. 2, due to the cervix has been localized to do a certain kind of treatment, such as microwave treatment, or laser treatment, cryotherapy, due to over treatment and cause the local Anatomical changes, so that the glands of the cervix is destroyed, the cervical secretion will be reduced, the vaginal discharge will also be reduced. Clinically, it is best to combine this with a history, such as a blood test on the day after menstruation to check hormone 6 for ovarian function, and a history of previous cervical treatments.