Vaginal dryness and pain during intercourse can be caused by the following two common reasons: 1. local dryness and pain caused by vaginal inflammation, which can be treated by targeting the infecting pathogens, such as vaginal plugging of compound metronidazole pessary, which treats both Candida infection, mycosis fungoides and bacterial vaginosis. 2. decrease in estrogen due to ovarian decline, decrease in cervical secretion and decrease in vaginal discharge. In this case, it is better to exclude cervical cancer, breast cancer or endometrial cancer, and put Ovitin ointment on the vagina.