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 is the direct answer?
What does this question mean?
The inner upper lip contains mucosa, minor salivary glands, muscle, and blood vessels; a local lump may therefore have several possible origins.
What can you do next?
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 should you seek dental care?
Get urgent help for rapidly increasing swelling, hives, tongue or throat swelling, breathing difficulty, fever, or spreading facial redness.
What should you ask the dentist?
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.
