Bump on gum that hurts
A painful gum bump may be an ulcer, traumatic swelling, trapped food, periodontal abscess, or drainage point from an infected tooth.
The short answer
A localized lump is swelling in gingiva or nearby mucosa. Its position, colour, discharge, duration, and relationship to a tooth help distinguish surface injury from a root or gum infection.
How should I protect a painful gum lump?
Rinse gently, keep the area clean, and avoid cutting, pressing, or popping it. Note changes in size, tooth sensitivity, bad taste, recent dental work, and any injury.
When should I book an examination for this lump?
Book an examination if it lasts several days, enlarges, drains pus, or returns. Fever, spreading face or neck swelling, or difficulty opening, swallowing, or breathing requires urgent care.
What might be causing the painful swelling?
Is this an ulcer, traumatic lesion, periodontal abscess, or root infection? Does the tooth need pulp testing, probing, an X-ray, drainage, or restoration?
Frequently asked questions
What is the main thing to remember?
A localized lump is swelling in gingiva or nearby mucosa. Its position, colour, discharge, duration, and relationship to a tooth help distinguish surface injury from a root or gum infection.
When should I arrange an examination?
Is this an ulcer, traumatic lesion, periodontal abscess, or root infection? Does the tooth need pulp testing, probing, an X-ray, drainage, or restoration?
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.