Atrophic vaginitis (also known as vaginal atrophy or urogenital atrophy) is an inflammation of the vagina (and the outer urinary tract) due to the thinning and shrinking of the tissues, as well as decreased lubrication. This is all due to a lack of the reproductive hormone estrogen. The most common cause of vaginal atrophy is the decrease in estrogen which happens naturally during perimenopause, a...