The vagina slowly becomes dry halfway through the sex life, considering the change of hormone level, insufficient foreplay and so on. 1. Hormone level changes: as women age, ovarian function gradually decline, the estrogen level in the female body will be reduced, so women will appear vaginal dryness, pain and other discomforts, and more obvious in sexual life. 2. Inadequate foreplay: If the couple’s sex life is not enough foreplay, the female vagina has not secreted enough glandular fluid, the process of sex will lead to vaginal dryness gradually obvious. For women whose vagina slowly becomes dry halfway through sex, lubricants can be used when necessary to avoid damage to the vaginal mucosa or to affect the quality of sex, if the symptoms continue to be unrelieved, it is recommended that they go to the gynecology department of a regular hospital, and then actively treat the cause of the disease under the guidance of the doctor.