Little blister on gums

A small gum blister may be a draining dental abscess, irritation, or a harmless cyst, so its location and symptoms matter.

A pimple-like bump beside a tooth can be a sinus tract draining infection from the pulp or tissues around the root. A clear or traumatic blister can instead follow friction, biting, a burn, or irritation from an appliance.

Do not pop or squeeze the bump. Rinse gently with water, avoid sharp or hot foods, and note its size, colour, tenderness, and relation to a tooth so the dentist can examine the area and take imaging if needed.

Book dental care promptly if the bump is beside a painful, dark, broken, or sensitive tooth, or if it keeps returning. Seek urgent help for facial swelling, fever, spreading redness, or difficulty swallowing or breathing.

Ask whether the bump connects to a tooth infection, gum pocket, ulcer, or blocked gland. Ask what examination, vitality test, or radiograph is needed and whether treatment should address the tooth, gum, or irritation.