Postmenopausal vaginal atrophy is caused by lack of estrogen, which can lead to atrophy, or thinning of tissue, of the vagina and lower urinary tract. (mindbodygreen.com)
Unfortunately, lack of estrogen contributes to vaginal dryness, which in turn makes for painful sex. (romper.com)
The drop - off of testosterone lowers libido while lack of estrogen further exacerbates the problem by reducing lubrication and thinning vaginal walls, making sex painful. (prevention.com)