Why does the gum around my wisdom tooth hurt

Pain around a wisdom tooth often comes from inflamed gum over a partly erupted tooth, trapped debris, decay, or infection.

A flap of gum called an operculum can cover part of an erupting third molar. Food and bacteria may collect beneath it, causing pericoronitis, while an awkward tooth position can also make cleaning difficult and allow decay in the wisdom tooth or its neighbour.

Rinse gently with warm salt water, brush the area carefully, and keep food from packing around the tooth. Do not cut the gum or place aspirin directly on it; a clinician may clean under the flap, treat decay, or discuss removal.

Arrange dental care for recurring pain, bad taste, pus, limited mouth opening, or cheek swelling. Fever, rapidly spreading swelling, or difficulty swallowing or breathing needs urgent assessment.

Ask whether the tooth is fully erupted, whether an X-ray shows its angle and roots, and whether the opposing tooth or neighbouring molar is affected. Ask about cleaning, gum-flap treatment, and extraction if episodes return.