What causes gum swelling and pain
Gum swelling and pain can come from plaque inflammation, trapped food, trauma, gum infection, or infection inside a tooth.
The short answer
Location and examination findings distinguish inflamed gingiva from a periodontal abscess, pulp infection, or wisdom-tooth inflammation.

What is the direct answer?
What does this question mean?
Plaque inflames the gum margin; a deep pocket may produce pus. A cavity or crack can inflame pulp and form an abscess near the root.
What can you do next?
Clean gently, rinse with lukewarm salt water, and avoid squeezing the swelling. Use medicine only as directed for your health situation.
When should you seek dental care?
Prompt care is needed for persistent pain, a gum boil, bad taste, or swelling around one tooth. Fever or facial spread is urgent.
What should you ask the dentist?
Ask whether the source is gum, pulp, root, or wisdom-tooth tissue, and whether probing, pulp tests, or radiographs are needed.
Frequently asked questions
Can this have more than one cause?
Yes. Appearance, location, duration, and examination findings help distinguish irritation, infection, trauma, and tooth-related causes.
What should I avoid meanwhile?
Avoid picking, squeezing, harsh products, and any activity that repeatedly irritates the area while arranging care.
