Bleeding gums in pregnancy (pregnancy gingivitis)

Updated on 13 March 2026 · by Clínica Dental Bizkaia

In short: gums swelling and bleeding in pregnancy is very common and has a name: pregnancy gingivitis. The culprit is the hormones, which make the gums react in an exaggerated way to plaque. It’s mild and reversible, but worth caring for: good hygiene, a professional cleaning and a check-up. And yes, you can go to the dentist while pregnant.

Why does it happen?

Because of the pregnancy hormone surge. Those hormones make the gums react in an exaggerated way to the same old plaque: they go red, swell and bleed when brushing more easily. It tends to show from the second or third month and is extremely common; it doesn’t mean you’re doing anything wrong.

Is it the same as periodontitis?

No, and that matters. Gingivitis is the mild, reversible stage (just inflamed gum). Left unchecked for a long time it can progress, which is why it’s worth controlling. The good news: with hygiene and cleaning, pregnancy gingivitis usually settles after the birth.

And if a small lump appears on the gum?

Sometimes a small reddish lump that bleeds appears (called a pregnancy “granuloma” or epulis). It’s benign and usually disappears on its own after the birth. Even so, have the dentist check it to confirm it’s that and nothing else.

How do I care for it?

Gentle but consistent hygiene: soft brush twice a day plus floss or interdental brush, even if they bleed a little at first.
Professional cleaning: removing the tartar you can’t reach is what helps most. It’s safe in pregnancy.
If nausea stops you brushing well, rinse with water and get back to it when you can; don’t beat yourself up.

When should I go to the dentist?

The sooner the better, without waiting for the birth. A check-up and cleaning are safe, and the second trimester is the most comfortable time. Always say you’re pregnant and how many weeks. (Here’s more on dental health and pregnancy.)

Pregnant and noticing your gums are more sensitive or bleeding? Come for a check-up and cleaning; we’ll keep it under control with no fuss. The first visit is free: book an appointment.

Frequently asked questions

Why are my gums bleeding in pregnancy?

Because of hormonal changes. During pregnancy the gums react in an exaggerated way to plaque: they become inflamed, red and bleed easily even if your hygiene is the same as ever. This is called pregnancy gingivitis and it's very common.

Is it dangerous for the baby?

Gingivitis itself is mild and reversible with good hygiene and a professional cleaning. It's worth keeping under control because sustained gum inflammation isn't good for your general health; so it's more reason to look after them during pregnancy, not less.

Can I go to the dentist while pregnant?

Yes. A check-up and cleaning are safe during pregnancy, and the second trimester is usually the most comfortable time. Always say that you're pregnant and how many weeks you are so we can adapt whatever is needed.