Black Spots on Oral Mucosa: Causes and Concerns - Dentistry

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There is a black spot (melanosis) on the buccal mucosa?


Last night, I discovered a black spot (melanosis) on the buccal mucosa of my cheek.
When I touched it, it wasn't raised, swollen, or painful.
Could you please help me understand what this might be? I have two photos.
Thank you for your response!

Niming, 20~29 year old female. Ask Date: 2020/06/18

Dr. Zeng Guanghui reply Dentistry


There is a black spot on the buccal mucosa that is neither raised nor painful, which may be due to a small submucosal hemorrhage causing a hematoma.
It is recommended to consult a dentist for further examination.
Dr.
Tseng Guang-Hui, Chief of Dentistry, Nantou Hospital.

Reply Date: 2020/06/18

More Info


When it comes to black spots on the oral mucosa, there are several potential causes that can range from benign to more serious conditions. Based on the information provided in your question and the previous discussions, it is important to approach this issue with a clear understanding of the possible reasons behind the appearance of such spots.

Firstly, black spots in the oral cavity can sometimes be a result of pigmentation changes in the mucosa. These changes can be due to various factors, including genetics, certain medications, or even dietary habits. For instance, some individuals may have a natural predisposition to develop dark spots in their mouths, which are usually harmless.

Another common cause of black spots is the presence of oral melanotic macules. These are flat, brown or black spots that can appear on the lips or oral mucosa and are typically benign. They are often caused by an increase in melanin production, which can be triggered by factors such as sun exposure or irritation.

In some cases, black spots may indicate a more serious condition, such as oral melanoma, which is a rare but aggressive form of cancer that can occur in the oral cavity. However, oral melanoma typically presents with other symptoms, such as changes in the texture of the spot, bleeding, or pain. If the black spot is flat, smooth, and does not exhibit any of these concerning features, it is less likely to be malignant.

Additionally, trauma to the oral mucosa can lead to the formation of black spots. For example, if there has been any recent injury or irritation in the area, it could result in localized bleeding, which may appear as a black or dark spot. This is often a temporary condition that resolves on its own as the tissue heals.

Given that you mentioned the spot is not raised, painful, or swollen, it may be less likely to be a serious issue. However, it is crucial to monitor the spot for any changes over time. If it persists, grows, or begins to exhibit any concerning characteristics, it is advisable to seek further evaluation from a dental or medical professional.

In your case, since you have already taken the initiative to document the spot with photographs, it would be beneficial to share these with a healthcare provider during your next visit. They can perform a thorough examination and, if necessary, conduct a biopsy to rule out any serious conditions.

In summary, while black spots on the oral mucosa can be concerning, many are benign and may simply be a result of pigmentation changes or minor trauma. However, it is always best to err on the side of caution and consult with a healthcare professional if you have any doubts or if the condition changes. Regular dental check-ups can also help in monitoring any changes in your oral health, ensuring that any potential issues are addressed promptly.

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