Inside gum swelling
A swelling inside the gum may be caused by plaque-related inflammation, food trapped under the gum, an erupting tooth, or infection at a tooth root.
The short answer
Gum swelling is enlargement of gingival tissue around or between teeth, and it may be soft, firm, red, or tender. A localized bump can represent inflamed gum tissue or drainage from infection in the tooth or supporting tissues.
How can plaque or trapped food inflame one gum area?
Plaque and calculus inflame the gingiva, while food impaction can press into a gum pocket and cause a focal sore area. A cavity that reaches the pulp may allow infection through the root tip and produce swelling on the gum above it.
How can you care for a swollen gum safely at home?
Clean gently with a soft brush and between-teeth aid, rinse with warm water, and avoid puncturing the swelling. Arrange a dental examination because treatment may require professional cleaning, a filling, root canal treatment, drainage, or removal of a tooth depending on the cause.
When does gum swelling need prompt dental care?
Seek prompt care for a painful localized swelling, pus, fever, facial swelling, or a tooth that is loose or painful to bite on. Treat mouth or facial swelling as urgent when it affects swallowing, breathing, or mouth opening.
Could the swelling be from the gum or an affected tooth?
Is the swelling attached to the gum or coming from a tooth? Will you test the tooth and take a focused radiograph?
Frequently asked questions
What is the first useful step?
Gum swelling is enlargement of gingival tissue around or between teeth, and it may be soft, firm, red, or tender.
What symptom should not be ignored?
Seek prompt care for a painful localized swelling, pus, fever, facial swelling, or a tooth that is loose or painful to bite on.
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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.