[Durgical](https://durgical.com/en/) › [DurgiPedia](https://durgical.com/en/durgipedia/) › [Dentistry](https://durgical.com/en/dentistry/) › [Gums and periodontium](https://durgical.com/en/dentistry/areas/periodontal/) › Gingivitis: bleeding gums

# Gingivitis: bleeding gums

- Oral pathology

Gingivitis is inflammation of the gums caused by plaque. The gums are red, swollen and bleed on brushing, and it reverses fully with good cleaning.

Updated Nov 12, 2026

**See it in 3D:** [Gums (gingiva)](https://durgical.com/en/anatomy/gums/)

## Key points

- Gingivitis = plaque inflammation, reversible, no attachment loss.
- Keep brushing bleeding gums.
- Spontaneous bleeding: check the blood count and clotting.

## What it is

Plaque-induced gingivitis is the most common form of gum disease. Bacteria that build up at the gum line cause inflammation within days if they are not removed. The gums turn red, lose their stippling, swell and bleed with brushing or flossing; pain is usually mild or absent. No attachment or bone is lost, so gingivitis is fully reversible. Hormonal changes (puberty, pregnancy), diabetes, smoking, mouth breathing, crowded teeth and some drugs make it worse.

## How to recognise it

- Signs: redness, swelling, bleeding on brushing or probing, no pocketing or attachment loss.
- Resolves within one to two weeks of effective plaque removal.
- Pregnancy gingivitis is common, and a pregnancy granuloma (pyogenic granuloma) can appear.
- Bleeding that is spontaneous, heavy or with bruising is not ordinary gingivitis.
- Untreated gingivitis can progress to periodontitis in susceptible people.

## Differential and risks

- Spontaneous gum bleeding, petechiae or gum swelling out of proportion to plaque suggests leukaemia, thrombocytopenia, a bleeding disorder or anticoagulant excess.
- Painful, ulcerated, grey-topped papillae with bad breath is necrotising gingivitis, a different disease.
- Patients often stop brushing bleeding areas, which makes the gingivitis worse.

## Next step / Initial management

- Advise brushing twice a day for two minutes, cleaning between teeth daily and not stopping when the gums bleed.
- A chlorhexidine mouthwash for a short period can help when brushing is difficult; long use stains teeth.
- Refer to the dentist for professional cleaning and to check for periodontitis.
- Spontaneous bleeding or bruising: full blood count and coagulation studies; refer urgently if abnormal.

## Test yourself

Think of the answer, then tap the question to see it.

## What distinguishes gingivitis from periodontitis?

Gingivitis has no loss of attachment or bone and is fully reversible.

## Why should a patient keep brushing gums that bleed?

Because bleeding is caused by plaque; removing it resolves the inflammation.

## What systemic causes should spontaneous gum bleeding raise?

Leukaemia, thrombocytopenia, bleeding disorders or anticoagulant excess.

[Add to my cards (3)](https://durgical.app/estudiar/?add=/en/dentistry/gingivitis-bleeding-gums/)

## Connections

## See it in 3D 1

The structures of Durgical's 3D anatomy where it is found.

- [Gums (gingiva)](https://durgical.com/en/anatomy/gums/)

## Related 4

- [The periodontium: gingiva, ligament, cementum and alveolar bone](https://durgical.com/en/dentistry/the-periodontium-gingiva-ligament-cementum-and-alveolar-bone/)
- [Periodontitis: stages, grades and links with general health](https://durgical.com/en/dentistry/periodontitis-stages-grades-and-links-with-general-health/)
- [Pregnancy and oral health](https://durgical.com/en/dentistry/pregnancy-and-oral-health/)
- [Blood disorders in the mouth: leukaemia, anaemia and bleeding](https://durgical.com/en/dentistry/blood-disorders-in-the-mouth-leukaemia-anaemia-and-bleeding/)

## Related conditions 1

- [Periodontitis](https://durgical.com/en/conditions/periodontitis/)

## In Pharmacology 1

- [Chlorhexidine](https://durgical.com/en/pharmacology/chlorhexidine/)

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Educational content; it does not replace assessment by a dentist or doctor and is not a clinical instruction. For facial or neck swelling with difficulty swallowing or breathing, a knocked-out tooth or bleeding that will not stop, go to an emergency department at once.

Sources: [Gingivitis](https://www.ncbi.nlm.nih.gov/books/NBK557422/) (StatPearls Publishing (NCBI Bookshelf), 2026); [Periodontal (Gum) Disease](https://www.nidcr.nih.gov/health-info/gum-disease) (National Institute of Dental and Craniofacial Research (NIDCR, NIH), 2024); [Anatomy, Head and Neck, Oral Gingiva](https://www.ncbi.nlm.nih.gov/books/NBK560662/) (StatPearls Publishing (NCBI Bookshelf), 2023).

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Representative model, for educational purposes only.

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License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Cite as: DurgiPedia (durgical.com), https://durgical.com/en/dentistry/gingivitis-bleeding-gums/