Knot on gum above tooth
A firm or tender lump above a tooth can come from gum irritation, a tooth-root infection, or another tissue change.
The short answer
A firm or tender lump above a tooth can come from gum irritation, a tooth-root infection, or another tissue change. Its location, duration, texture, and relationship to the tooth guide the examination.
Why might infection or irritation create a gum lump?
A root infection may create a raised drainage point in the gum, while food impaction or periodontal inflammation can make tissue feel thickened. A hard, fixed, growing, or ulcerated lump needs assessment because not every lump is dental infection.
How should you care for a lump above your tooth?
Keep the area clean with gentle brushing and avoid pressing, puncturing, or applying household substances. Note whether the lump changes after eating, drains, bleeds, or becomes painful.
When should a persistent gum lump be examined?
Arrange a dental examination for a lump that persists, grows, bleeds, ulcerates, or is associated with pain or a loose tooth. Facial swelling, fever, or swallowing or breathing difficulty needs urgent care.
What tests can identify the cause of the gum lump?
Ask whether the lump is connected to the tooth root, gum pocket, or another tissue, and whether probing, a vitality test, or imaging is needed. Ask what treatment addresses the identified cause.
Frequently asked questions
Is a hard gum lump always an abscess?
No. An abscess is one possibility; the tissue and nearby tooth must be examined to identify the cause.
Can a gum lump be painless?
Yes. Lack of pain does not identify the cause, so a persistent or changing lump still warrants assessment.
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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.