I Have a Lump on My Lip — What Could It Be?

I Have a Lump on My Lip — What Could It Be?

Feeling a lump on your lip is noticeable and can be concerning. Here's a breakdown of what it might be.

Lumps on the lip are common and usually harmless. The most frequent causes include:

• Mucocele — a soft, bluish, fluid-filled bump caused by a blocked saliva gland, very common on the lower lip
• Fibroma — a small, firm, smooth bump of scar-like tissue, often from repeatedly biting your lip
• Cold sore (herpes simplex) — a blister-like bump, often with tingling or burning before it appears
• Fordyce spots — tiny, painless, yellowish-white oil glands that are normal and harmless
• Allergic reaction — swelling from an allergy to food, lip balm, or toothpaste
• Lipoma — a soft, fatty lump under the skin, benign

Less commonly, a persistent lump on the lip could be a form of skin cancer (squamous cell carcinoma or basal cell carcinoma), especially on the lower lip.

What to Look For

• Usually not serious:
• Soft, movable, painless lump
• Bluish, clear, or skin-colored
• Appears after biting your lip
• Comes and goes (especially mucoceles)
• Tingling before it appears (likely cold sore)

• Worth having checked:
• Firm or hard lump that does not move
• Lump with a crusty, scaly, or bleeding surface
• Sore on the lip that does not heal within 2 weeks
• Numbness or tingling in the lip around the lump
• Lump that is growing steadily over time

When to See a Doctor

• See a dermatologist or dentist if:
• The lump lasts longer than 2–3 weeks without changing
• It is firm, hard, or fixed in place
• The lip feels numb or different
• There is a scab or sore that bleeds and does not heal
• You have a history of extensive sun exposure (lower lip is susceptible to skin cancer)

Clinical Guidance