Pus in gums causes
Pus near the gums can indicate a periodontal or tooth abscess and needs dental examination to locate the infection.
The short answer
Pus in or beside the gums usually indicates a dental infection, such as a gum abscess or an abscess arising from the tooth root. The collection may drain through a small gum opening, but drainage does not remove the infected source.
How can bacteria become trapped around the gums?
A gum abscess can form when bacteria enter a periodontal pocket or injured gum. A tooth-root abscess develops when decay, a crack or trauma allows bacteria to infect the pulp and tissues around the root tip.
What should you do after noticing pus near the gums?
Arrange an urgent dental examination for a clinical check and dental radiograph when needed. Treatment may involve draining the collection, cleaning a periodontal pocket, root canal treatment or removing the tooth, depending on the source.
When does pus near the gums need urgent dental care?
Seek prompt care for pus, swelling, throbbing pain, fever, a bad taste or a loose tooth. Go to emergency care for rapidly spreading facial swelling, difficulty opening the mouth, swallowing or breathing, or swelling around the eye.
What should the dentist check to find the infection source?
Ask whether the infection is in the gum, tooth pulp or bone, and which examination or radiograph confirms the location. Ask what definitive treatment removes the source and what warning signs require immediate escalation.
Frequently asked questions
Can a gum abscess go away by itself?
It may drain and feel better temporarily, but the source can remain and needs dental assessment.
Should I squeeze the pus?
No. Do not squeeze or puncture the area; arrange dental care and seek emergency help if swelling spreads.
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.