a Movable Bump on the Inside of Your Lower Lip - Dentistry

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There is a lump on the inner left side of the lower lip?


Hello Dr.
Tseng: Recently, I noticed a round, swollen bump on the inner left side of my lower lip, close to the lip.
It doesn't hurt but is movable, and it feels like a small ball.
I've had it for about a week now.
Could you help me determine what this might be? Is it possible that it could be a tumor?

Ayou, 30~39 year old female. Ask Date: 2016/07/16

Dr. Zeng Guanghui reply Dentistry


The above situation is likely due to inflammation and swelling of the small salivary glands inside the mouth.
It is recommended to consult a dentist or an oral surgeon for further evaluation and treatment.

Reply Date: 2016/07/16

More Info


The movable bump you are experiencing on the inside of your lower lip could be indicative of several conditions, but it is most likely a benign issue. Based on your description, it sounds like it could be a mucocele, which is a common type of cyst that forms when a salivary gland is blocked or damaged. Mucoceles often appear as soft, fluid-filled bumps that can move slightly when touched, and they are typically painless. They can occur due to trauma, such as biting your lip, or they may develop spontaneously without any clear cause.

Mucoceles are generally harmless and often resolve on their own over time. However, if they persist for more than a couple of weeks, become painful, or show signs of infection (such as redness, swelling, or discharge), it is advisable to seek evaluation from a dental or medical professional. They can provide a definitive diagnosis and discuss treatment options if necessary. In some cases, if a mucocele does not resolve on its own, surgical removal may be recommended.

It is also important to differentiate between a mucocele and other potential causes of a bump in the oral cavity, such as fibromas, lipomas, or even more serious conditions like tumors. While the likelihood of a tumor is low given your description, it is essential to monitor the bump for any changes in size, color, or sensation. If you notice any concerning changes, it is best to consult with a healthcare provider.

In terms of management, if the bump is indeed a mucocele and is not causing you any discomfort, you may choose to leave it alone and allow it to resolve naturally. However, if you find it bothersome or if it interferes with your daily activities, you should consider visiting a dentist or oral surgeon for further evaluation. They may recommend treatments such as draining the cyst or surgical excision if it is persistent.

Regarding dietary considerations, there are no specific foods that you need to avoid unless you notice that certain items exacerbate the bump or cause discomfort. Generally, maintaining good oral hygiene and avoiding irritants, such as spicy or acidic foods, can help prevent further irritation of the area.

In summary, while the movable bump on the inside of your lower lip is likely a benign condition such as a mucocele, it is essential to monitor it and consult a healthcare professional if it persists or worsens. Regular dental check-ups can also help in identifying and managing oral health issues early on.

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