Atrophic vaginitis is an erosion of the vaginal tissues. This condition usually occurs after a woman has gone through menopause.
Low levels of estrogen cause a loss of lubrication, or moisture, in the vaginal tissues. At the same time, the vagina receives less blood supply and nutrients. And those two changes together can cause the vaginal wall to thin out. Women have low levels of estrogen at certain times of life:
At these times, the vagina also becomes less acidic. Harmful bacteria may replace the germs that are usually found in the vagina. So the vagina becomes more prone to trauma and infection.
This condition occurs when the ovaries produce too little estrogen. It is very rare in children. In women who have this condition, infection and trauma during intercourse become more likely.