Why is the inside of my mouth swelling
Swelling inside the mouth may come from trauma, infection, a blocked salivary duct, allergy, or another tissue change.
The short answer
Swelling inside the mouth can arise from trauma, a dental or gum infection, a blocked salivary duct, an allergic reaction, or an inflamed sore.
What is the direct answer?
What does this question mean?
The lining of the cheek, lips, palate, gums, and floor of the mouth can all swell. A fluid-filled salivary blockage often changes with meals, whereas infection may cause tenderness, warmth, pus, tooth pain, or fever.
What can you do next?
Rinse gently with warm salt water, keep brushing carefully, and avoid biting the area or eating sharp, hot, or strongly seasoned foods. Do not puncture the swelling or place chemicals on it; a dentist may examine the tooth and soft tissue and use imaging or drainage when indicated.
When should you seek dental care?
Book dental care when swelling persists, recurs, enlarges, or is associated with tooth pain, drainage, fever, or a nonhealing ulcer. Seek emergency help for swelling that affects breathing, swallowing, the eye, or the neck.
What should you ask the dentist?
Ask whether the swelling is linked to a tooth, gum, salivary duct, bite injury, or oral lesion. Ask whether an X-ray, treatment of an infected tooth, biopsy, or review of a new medicine is appropriate.
Frequently asked questions
Can a swollen cheek come from a tooth?
Yes. A tooth or gum infection can spread into nearby soft tissue and cause localized swelling.
Should I pop a mouth swelling?
No. Puncturing it can injure tissue and introduce infection; the cause should be assessed first.