Swollen gums lower jaw

Swelling along the lower gums can result from plaque, trapped food, trauma, a tooth abscess, or an erupting tooth and needs examination if it persists.

Plaque can inflame the gum margin, while food impaction, a sharp filling, biting injury, periodontal infection, or inflammation around a partially erupted molar can cause a localized lump. A dental abscess may arise from infected pulp or gum tissues.

Rinse gently with warm water, brush carefully, clean between the teeth, and avoid squeezing the swelling or placing aspirin on the gum. A dentist may examine the tooth, test pulp response, probe the gums, and take an X-ray.

Seek prompt care for increasing swelling, throbbing pain, pus, fever, a bad taste, or difficulty opening the mouth. Emergency help is needed when swelling affects breathing, swallowing, or the eye or neck.

Is the swelling beside a tooth, under the tongue, or behind the last molar? Could there be decay, a gum pocket, or an erupting wisdom tooth? Will imaging be needed?