Small Bumps on the Gums: Causes and Concerns - Otolaryngology

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Small blisters on the gums behind the molars?


Hello, I have a small bump (0.2 cm) appearing in the upper part of the gum behind my right molar.
It is a single bump, painless, slightly whiter than the surrounding gum, and feels firmer.
If I lick it, it can break (still without any sensation; I only noticed it after careful observation).
It seems like this has occurred a few times in the same spot before.
Is this dangerous? I read online that it could be a viral infection, which makes me worried.
Thank you for taking the time to respond, and I wish you a Happy New Year! May all your wishes come true!

Niming (Xuesheng), 10~19 year old female. Ask Date: 2016/02/08

Dr. Zheng Jueyi reply Otolaryngology


Hello, common issues related to the minor salivary glands may occur.
If symptoms do not improve, it is advisable to seek medical evaluation.
Wishing you safety and health.
Sincerely, Dr.
Cheng Jue-Yi, Director of the Department of Otolaryngology, Taoyuan Hospital, Ministry of Health and Welfare.

Reply Date: 2016/02/08

More Info


Understanding small bumps on the gums can be concerning, especially when they appear repeatedly. Based on your description, the bump you are experiencing is small, hard, and painless, which can help narrow down potential causes. Here are some common reasons for such bumps on the gums, along with additional insights into their implications and management.

1. Fibromas: These are benign tumors that can occur in the oral cavity, including the gums. They are usually firm, painless, and can appear white or slightly discolored. Fibromas often arise due to irritation or trauma, such as from dental work or biting the gums.

2. Mucocele: This is a fluid-filled cyst that can develop when a salivary gland duct is blocked or damaged. Mucoceles are typically painless and can appear as small, soft bumps. They may rupture and cause temporary discomfort but usually heal on their own.

3. Dental Abscess: While you mentioned that the bump is painless, it’s important to consider that dental abscesses can sometimes present as small bumps on the gums. These are usually associated with infection and can become painful if not treated. They may appear red or swollen and can be accompanied by other symptoms like fever or swelling in the face.

4. Papilloma: Oral papillomas are benign growths caused by the human papillomavirus (HPV). They can appear as small, painless bumps and may have a cauliflower-like appearance. While they are generally harmless, monitoring them for changes is essential.

5. Canker Sores: Although typically painful, canker sores can sometimes present as small bumps before they ulcerate. They are often triggered by stress, certain foods, or hormonal changes.

6. Oral Lichen Planus: This is a chronic inflammatory condition that can cause white patches or bumps in the mouth. It may be associated with discomfort or sensitivity, but some forms can be asymptomatic.

7. Viral Infections: Certain viral infections, such as herpes simplex virus, can cause bumps or blisters in the oral cavity. These are usually painful and may be accompanied by other symptoms like fever or malaise.

Given that the bump has appeared multiple times in the same location, it may be worthwhile to consult a dentist or an oral specialist for a thorough examination. They can provide a definitive diagnosis and recommend appropriate treatment if necessary.
In terms of management, if the bump is not causing any discomfort, it may not require immediate intervention. However, maintaining good oral hygiene is crucial. Regular brushing and flossing can help prevent irritation and potential infections. Avoiding irritants, such as spicy foods or tobacco, may also be beneficial.

If the bump changes in size, color, or becomes painful, or if you notice any other concerning symptoms (such as swelling in the face or difficulty swallowing), it is essential to seek medical attention promptly. Early diagnosis and treatment can prevent complications and ensure better outcomes.

In summary, while small bumps on the gums can be benign, it is always best to err on the side of caution and consult a healthcare professional for any persistent or concerning oral lesions. Wishing you good health and a happy new year!

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