The presence of soreness in the vagina can be caused by a number of factors. When vaginal inflammation is present, it can cause edema of the vaginal mucosa and even congestion of the cervix, which may cause soreness and discomfort when washing or touching. When there is inflammation of the pelvic cavity, there will be a large area of fluid in the pelvic cavity, which will cause sinking and discomfort, and also cause vaginal pain. When there is excessive strenuous exercise during intercourse, the effect of external force may also cause vaginal pain. When the hormone level in the body is abnormal, especially when the estrogen is low, the vaginal soreness and discomfort can be felt because there is no certain secretion to moisten the vagina.