What is happening
Estrogen keeps the tissue of the vagina, vulva, urethra, and bladder neck thick, elastic, and well supplied with blood. When estrogen falls, that tissue gets thinner, less elastic, and drier. The vaginal walls lose the folds that let them stretch. Blood flow drops, so natural lubrication with arousal drops too. The pH rises and the mix of bacteria shifts away from the lactobacilli that normally dominate.
Because the urethra and the trigone of the bladder develop from the same embryonic tissue as the vagina, they thin along with it. That is why “vaginal” dryness so often comes packaged with urinary urgency, burning, and repeat infections. Clinicians stopped calling this vaginal atrophy and started calling it genitourinary syndrome of menopause precisely because the bladder part is not incidental.
Why this one does not go away on its own
Hot flashes usually fade after some years. GSM does not. It is a structural change that continues as long as estrogen stays low, and left alone it tends to progress. Surveys consistently find that about half of postmenopausal women have symptoms and only a minority are being treated — partly because it is not asked about, and partly because women assume it is simply what aging is.
It is not, and the gap matters. Untreated GSM ends sex lives, makes routine pelvic exams and cervical cancer screening painful, and drives a cycle of urinary infections that gets treated with antibiotic after antibiotic while the underlying cause goes untouched.
How we approach it
We ask directly, because most women will not raise it first. We ask what hurts, when it started, whether it is at the opening or deeper, whether lubricants help, and whether you also have urinary symptoms. An exam tells us whether the tissue looks atrophic, whether the pelvic floor muscles have tightened up in response to months of painful sex, and whether there is anything else going on — lichen sclerosus and other vulvar skin conditions cause similar symptoms and are treated completely differently.
For most women the plan is low-dose vaginal estrogen plus a moisturizer, with a lubricant for sex. If you cannot use estrogen, vaginal DHEA and oral ospemifene are alternatives with trial evidence. If the pelvic floor has learned to guard, physical therapy is added, because treating the tissue alone will not undo a muscle pattern.
We recheck at about 12 weeks. This is a treatment you stay on rather than finish.