What causes swelling in the gums
Swollen gums can result from plaque-related inflammation, infection, trauma, or hormonal changes and need assessment if persistent.
The short answer
Swollen gums are most often caused by inflammation from plaque, but infection, trauma, trapped food, medicines, or hormonal changes can also contribute. The cause depends on whether the swelling is general or limited to one tooth.
What does inflammation do to the gum tissue?
Gingival swelling means the gum tissue has increased fluid and blood flow as part of inflammation. Redness, bleeding during brushing, tenderness, bad taste, or a small lump can help distinguish simple gingivitis from a tooth or gum abscess.
How can you care for swollen gums at home?
Brush along the gum margin twice daily with a soft brush and clean between the teeth. Rinse with lukewarm water, avoid picking at the swelling, and do not place aspirin or other chemicals directly on the gum.
When should swollen gums be checked by a dentist?
Book a dental examination when swelling persists, recurs, bleeds easily, or occurs around a painful tooth. Seek urgent care for rapidly spreading facial swelling, fever, difficulty swallowing, breathing difficulty, or restricted mouth opening.
What conditions could be behind swollen gums?
Ask whether the swelling is gingivitis, periodontitis, an abscess, or irritation from a tooth or appliance. Ask whether you need periodontal measurements, dental radiographs, professional cleaning, drainage, or treatment of a specific tooth.
Frequently asked questions
Can food stuck between teeth swell the gum?
Yes. Local irritation from trapped food can inflame one gum area, although persistent swelling needs examination.
Will brushing make swollen gums worse?
Gentle brushing removes plaque and usually supports healing; forceful scrubbing can further irritate the tissue.
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Who wrote this page
This library is published by Dental Nation, a licensed dental group practising in the United Arab Emirates. Pages are written and overseen by the same clinical team that treats patients in our clinics, and are held to a fixed editorial standard for safety and accuracy.
This page is patient education, not medical advice, and cannot replace an examination. Anything urgent — facial swelling, trauma, uncontrolled bleeding or severe pain — needs a dentist or emergency care now.