Gum behind tooth is swollen
Swelling behind a tooth can come from trapped plaque, gum infection, an erupting tooth, trauma, or an abscess, so the area needs examination.
The short answer
Gum behind a tooth may swell when plaque or food collects, a wisdom tooth erupts, or infection affects gum or tooth. A pocket, ulcer, bite injury, or abscess can look similar.
What is the direct answer?
What does this question mean?
The dentist checks the gum flap, tooth surfaces, pocket depth, drainage, bite, and nearby teeth. A radiograph may be needed near a wisdom tooth, root, or bone.
What can you do next?
Rinse gently, brush carefully, clean accessible spaces, and avoid squeezing or piercing the swelling. Choose soft foods and keep aspirin or caustic chemicals off the gum.
When should you seek dental care?
Seek urgent care for fever, pus, facial swelling, worsening pain, limited opening, or swallowing or breathing difficulty. Persistent swelling needs review.
What should you ask the dentist?
Ask whether the swelling is in a gum pocket or around an erupting tooth, what tests are needed, and whether cleaning, drainage, or tooth treatment is required.
Frequently asked questions
Can it heal at home?
Mild irritation may improve with cleaning, but persistent swelling needs examination.
Is it always a wisdom tooth?
No. Other teeth, gum pockets, trapped food, trauma, or an abscess can be responsible.