Why are the gums at the back of your mouth swollen?
Swelling near the back teeth often comes from gum inflammation, food trapping, or an erupting wisdom tooth and needs examination if persistent.
Which tissue may be swollen behind a back tooth?
The swollen area may be the gum behind a molar or around a partially erupted wisdom tooth. Plaque and trapped food can irritate the tissue, while decay, a gum pocket, trauma, or an abscess can create similar swelling.
How can you gently care for swollen back gums?
Brush gently around the area and rinse with warm water to remove loose food without poking the gum. Arrange an examination rather than squeezing the swelling, because treatment may require cleaning, an X-ray, drainage, or management of the wisdom tooth.
When does back-of-mouth swelling need urgent care?
Seek prompt care for increasing pain, pus, fever, facial swelling, difficulty opening the mouth, or trouble swallowing. Breathing difficulty or swelling spreading toward the neck requires emergency medical attention.
What should the dentist examine behind the molar?
Ask whether the swelling is around a wisdom tooth, a gum pocket, or an infected tooth, and whether imaging is needed. Ask what can settle it today and whether the underlying tooth needs cleaning, restoration, root canal treatment, or removal.
Frequently asked questions
Can a wisdom tooth cause gum swelling?
Yes. A partially erupted wisdom tooth can leave a gum flap where plaque and food collect, causing inflammation.
Should I pop the swelling?
No. Puncturing or squeezing it can injure tissue and does not treat a dental infection.
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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.

