Mild, generalised puffiness along several teeth often goes with gingivitis and improves with better cleaning. Local swelling over one tooth, a gum boil (a small pimple on the gum), or a face that looks lopsided is a different story — that can be an abscess.
Hormonal changes (including pregnancy) can also make gums look swollen. Food stuck under the gum, a wisdom-tooth flap, or an ill-fitting denture are other everyday causes.
Seek care promptly if
- The swelling is painful, growing, or you have a fever
- It is becoming hard to swallow, speak, or open your mouth
- Your eyelid or neck is involved
Do not try to lance a swelling at home. Salt-water rinses and a cold compress can comfort you on the way to a dentist.
References
Grounded in standard dental textbooks and professional guidance. These are general sources, not a substitute for an in-person exam.
- Newman MG, Takei HH, Klokkevold PR, Carranza FA. Carranza's Clinical Periodontology.
- Hargreaves KM, Berman LH. Cohen's Pathways of the Pulp.
This is general information written by a dentist, not personal medical advice. If you are in pain, swollen, or unsure, see a qualified dentist.