Inside of upper lip swollen
A swollen upper lip may follow trauma, a bitten lip, an ulcer, allergy, salivary-gland blockage, or infection from a nearby tooth..
The short answer
A swollen upper lip may follow trauma, a bitten lip, an ulcer, allergy, salivary-gland blockage, or infection from a nearby tooth.

What structures may cause an upper-lip lump?
The inner upper lip contains mucosa, minor salivary glands, muscle, and blood vessels; a local lump may therefore have several possible origins.
How can you care for a swollen upper lip?
Look for a bite mark, ulcer, blister, dental pain, or a sharp tooth, keep the area clean, and avoid biting or squeezing it. A clinician may inspect the lip and teeth and examine a persistent lump.
When is upper-lip swelling an urgent concern?
Get urgent help for rapidly increasing swelling, hives, tongue or throat swelling, breathing difficulty, fever, or spreading facial redness.
What should you ask about a persistent lip lump?
Ask how long the swelling should be observed, whether a tooth is involved, and whether a persistent lump needs dental, medical, or oral-surgery assessment.
Frequently asked questions
Could this have another cause?
Yes. An examination is needed when different dental or oral conditions can produce similar symptoms.
What should I bring to the appointment?
Bring a list of medicines, relevant medical conditions, when the symptom began, and anything that makes it better or worse.
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.
