Blood blister on gum above tooth
A blood blister above a tooth may follow trauma, but infection or another lesion must also be considered.
What can cause a blood blister above a tooth?
A blood blister above a tooth may follow trauma, but infection or another lesion must also be considered.
What might be inside a blood blister above the tooth?
The swelling may contain blood from an injured small vessel, or it may be a raised gum boil draining inflammation from the tooth or periodontal tissues. A dark red or purple colour alone cannot distinguish trauma from infection.
How should you handle a blood blister on the gum?
Do not puncture or squeeze it. Keep the area clean, avoid sharp or hot foods, note whether the tooth is painful or sensitive, and arrange an examination so the tooth, gum pocket, pulp, and nearby tissues can be checked.
When does a blood blister above a tooth need care?
Seek prompt dental care if it persists, enlarges, drains pus, or occurs with toothache, swelling, fever, a bad taste, or a loose tooth. Facial swelling or difficulty swallowing or breathing requires urgent assessment.
What should you ask about a blood blister above a tooth?
Ask whether the swelling is traumatic or an infection, whether the tooth needs pulp testing or an X-ray, and what treatment is needed if the source is inside the tooth or gum.
Frequently asked questions
Should I pop a blood blister on my gum?
No. Leave it intact and arrange an examination, especially if it is painful or recurrent.
Can an infected tooth cause a gum blister?
Yes. Infection from the pulp or tissues around a root can drain through a small gum swelling.
Keep reading
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.