Do Hormones Affect Your Gums?Periods, Pregnancy and Menopause

Plaque, the sticky film of bacteria on teeth, is what starts gum inflammation. Hormones can change how strongly the gums react. A review of the research across puberty, periods, pregnancy and menopause concluded that sex hormones play a significant role in how gum tissue responds.¹

Stage by stage

Stage	What studies found
Periods	In women who already had gum inflammation, about 61% of sites bled at menstruation and 59% at ovulation, vs 40% before the period. Women with healthy gums saw no change.2
Hormonal birth control	Possibly linked to more severe gum disease, but the evidence is very low quality.3
Pregnancy	About two-thirds of pregnant women had gums that bled when checked, rising through pregnancy.4
After menopause	Higher risk of gum disease and tooth loss.5 Women with osteoporosis had a little more gum attachment loss, about 0.34 mm on average.6

The period study was small, 50 women, and found the cycle’s effect on inflammation was limited.² The pregnancy figures varied a lot between studies.⁴ The osteoporosis findings came from snapshot studies, so they can’t show which came first.⁶

The common thread

At every stage, plaque stays the main driver, and hormones turn the volume up or down. The 2025 menopause review noted that many of these changes can be kept in check with regular dental visits and good cleaning.⁵

What to do

1. Clean well every day: brush twice and clean between teeth. See do I need to floss every day?
2. Tell your dentist your stage in one sentence: “I’m pregnant,” “My gums bleed more around my period,” or “I’m past menopause and have osteoporosis.”
3. Don’t stop contraception or HRT because of your gums without talking to your prescriber.
4. Get bleeding checked if it lasts. See why your gums bleed when you brush and dry mouth in menopause.

If you’re pregnant, see what to tell your dental team.

Try: “I’m postmenopausal and was recently told I have osteoporosis. My gums have started bleeding more. Should we check my gums more often?”

Is It My Breath? covers this in Chapter 6, “Gums, Floss and Hormones,” in a section called “A Lifetime of Hormones.” Its Breath Log tracks gum notes alongside your cycle or life stage, so a pattern can be shown to your dentist. See the book.