Swollen red gum around one tooth
A swollen red gum around one tooth can come from trapped food, plaque, trauma, decay, or an abscess near that tooth.
The short answer
A red, swollen gum around one tooth often reflects local irritation, but it can also signal decay, a gum pocket, or an abscess that needs examination. The cause cannot be identified reliably from colour alone.
What is the direct answer?
What does this question mean?
Inflamed gingiva becomes red, puffy, and more likely to bleed because blood flow and inflammatory fluid increase. A cavity below the gum, food wedged between teeth, a cracked tooth, or infection at the root can make one area stand out.
What can you do next?
Gently brush the area and clean between the affected tooth and its neighbour. Rinse with lukewarm water, avoid squeezing the swelling, and use only pain medicine that is appropriate for your health and current medicines.
When should you seek dental care?
Arrange care soon if the swelling remains, the tooth hurts, or there is bleeding, a bad taste, or pain when biting. Facial swelling, fever, or problems opening the mouth, swallowing, or breathing need urgent attention.
What should you ask the dentist?
Ask whether the source is the gum, the crown of the tooth, or the root and whether an X-ray is needed. Ask whether treatment involves cleaning, a filling, root canal treatment, drainage, or removal of the tooth.
Frequently asked questions
Can a swollen gum go away on its own?
Minor irritation may settle after careful cleaning, but persistent or recurring swelling needs diagnosis because infection will not be removed by brushing alone.
Should I pop the gum swelling?
No. Puncturing it can injure tissue and spread contamination without treating the dental source.