Most of these changes are related to the loss of the female hormone, estrogen. The normal periods stop. The skin of the vagina becomes thin and dry.
Vaginal lubrication is decreased.
These factors combine to make the vagina more susceptible to damage from injury during sex or from infection. Vaginal injury can lead to irritation, discharge, or even bleeding. This condition is called post-menopausal vaginitis. All women in menopause can have this problem. Luckily, although vaginitis is common, it is easily treated, even when severe.