I have a small bump on my bottom lip and it won't go away. what is it?

answered:

Lip bump...

Head-mouth-lips
This could be an enlarged salivary gland or cyst, but it sounds most likely like a mucocele, or a mucous retention cyst. These can form when a tiny salivary gland duct in the lip is damaged or injured, obstructing the flow of mucous and causing a cyst. Unfortunately, it won't spontaneously resolve and may need to be surgically removed. You should see an oral surgeon. Good luck!
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Cyst Duct Excise Lips Mucus Oral and maxillofacial surgery Salivary gland

Bump on Lip

Cancer
Besides the common cold sore, one can get a Fordyce spot, acne, an infectious lesion, or, rarely, although very unlikely at your age, a cancerous growth. The latter tend to bleed slightly and appear like non-healing sores. If it doesn't improve, you might want to check with your doctor or a dermatologist.
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Acne Bleeding Cancer Cold sore Common cold Contagious Dermatology Facial pimples Herpes simplex Lips

answered:

Physical exam

Lips
You need to be examine by your physician or gynecologist to rule out various causes that may include boil, warts, or other etiology including tumor.
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Boil Cancer Gynecologist Gynecology Lips Neoplasms Obstetrics and gynecology Warts