White Bump in Mouth: What It Could Be and When to See a Dentist - Dentistry

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A white bump has developed inside the oral cavity?


Hello, Dr.
Zhu: I previously bit the inside of my right cheek, and I noticed that the wound has healed into a small white protrusion.
It resembles a tiny pimple but is white in color and has been present for a long time.
It hasn't changed in size or caused any pain.
What could this be? There is no oral surgeon near my home; can I first see a dentist?

LiLi, 30~39 year old female. Ask Date: 2017/11/26

Dr. Zhu Guanyu reply Dentistry


Hello: To address your concerns, please visit our dental department for an examination.
Thank you for your message! Wishing you safety and health.
Sincerely, Dr.
Kuan-Yu Chu, Director of Dentistry, Taoyuan Hospital, Ministry of Health and Welfare.

Reply Date: 2017/11/26

More Info


When you notice a white bump in your mouth that resembles a small pimple and has been persistent without any change in size or pain, it can be concerning. There are several potential causes for such a bump, and understanding them can help you determine the next steps for treatment.

One common cause of a white bump in the mouth is a mucous cyst, also known as a mucocele. These are fluid-filled sacs that can occur when a salivary gland is blocked or damaged, often due to trauma or irritation. They typically appear as small, painless bumps and can resolve on their own, but if they persist or cause discomfort, a dental professional may need to evaluate them.

Another possibility is a fibroma, which is a benign tumor made up of connective tissue. Fibromas can develop in response to chronic irritation, such as from biting the inside of your cheek or from dental appliances like braces. These growths are generally painless and do not change in size, similar to what you described.

Oral leukoplakia is another condition that can present as a white patch or bump in the mouth. It is often associated with irritation from tobacco use, alcohol, or other irritants. While leukoplakia itself is not cancerous, it can sometimes be a precursor to oral cancer, so it is essential to have it evaluated by a healthcare professional.

Given your history of biting the inside of your mouth, it is possible that the bump is a result of this trauma. However, since it has not changed over time, it is advisable to seek a dental evaluation. Even if there is no oral surgery specialist nearby, a general dentist can provide a thorough examination and determine the nature of the bump. They may take a closer look, possibly perform a biopsy if necessary, and recommend treatment options based on their findings.

In terms of when to see a dentist, it is generally a good idea to schedule an appointment if you notice any persistent changes in your oral health, such as new growths, changes in existing lesions, or any discomfort. Regular dental check-ups are also crucial for maintaining oral health and catching potential issues early.

In summary, while the white bump you are experiencing could be a benign condition like a mucous cyst or fibroma, it is essential to have it evaluated by a dental professional to rule out any serious conditions. Even if you do not have access to an oral surgeon, a general dentist can provide the necessary care and guidance. Don't hesitate to seek help; your oral health is important, and addressing concerns early can lead to better outcomes.

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