Why do your gums bleed during pregnancy?
In the UK, dental care is free during pregnancy and for a year after birth.
Medically reviewed by Dr. Christopher Sterling, obstetrician ·
The short answer
Pregnancy hormones make gums more prone to swelling and bleeding (“pregnancy gingivitis”). Keep brushing and flossing, and see a dentist — check-ups and most dental treatment are safe during pregnancy. In the UK, NHS dental care is free while pregnant and for 12 months after.
Why it matters
Higher hormone levels increase blood flow to the gums and change how they react to plaque, so bleeding gums are very common.
Untreated gum disease has been linked in studies to pregnancy complications, so it’s worth taking seriously.
Frequent vomiting from morning sickness also exposes teeth to acid.
What to do
- Brush twice daily with fluoride toothpaste and clean between teeth.
- After vomiting, rinse with water rather than brushing straight away.
- Book a dental check-up and tell the dentist you’re pregnant.
- UK: ask your midwife for a maternity exemption certificate for free NHS dental care and prescriptions.
Common questions
Are dental X-rays safe during pregnancy?
Dental X-rays use very low doses and are considered safe when needed. Tell your dentist you’re pregnant.
Sources
Medically reviewed by Dr. Christopher Sterling, obstetrician, on against the sources above. Guidance can differ between countries — always follow the advice of your own midwife, doctor or pharmacist. Medical disclaimer.
You might not know these either
When is morning sickness too much?
If you can’t keep fluids down for 24 hours, it isn’t “just morning sickness”.
Read the answer →
Does perineal massage reduce tearing during birth?
A few minutes a day from 35 weeks can lower the chance of tearing — especially with a first baby.
Read the answer →
What is the safest sleep position in pregnancy?
Going to sleep on your back in the third trimester is linked to a higher risk of stillbirth.
Read the answer →Get all 42 in one guide
We’re turning every tip into one beautifully organised guide — with trimester-by-trimester checklists and a printable fridge list of foods to avoid. Join the early-access list and we’ll let you know when it’s ready.