Tongue Moles: Causes, Risks, and Lifespan - Dentistry

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A mole has developed on the tongue?


I suddenly developed a mole on my tongue, but I am currently studying abroad and cannot return to Taiwan for an examination right away.
Could you please explain under what circumstances a mole can appear on the tongue? Am I at any risk? I'm really worried, so please let me know.
Additionally, will a mole on the tongue last a lifetime, or can it disappear? Thank you!

Xiao Qing, 10~19 year old female. Ask Date: 2004/07/11

Dr. Liu Tiancai reply Dentistry


Hello: The sudden appearance of black spots or patches on the tongue can be attributed to several factors.
Firstly, it may be a hematoma caused by trauma or other unknown reasons.
In such cases, no treatment is necessary, as it will typically resolve and be absorbed back to normal within a few weeks.
Another possibility is small varicosities, which present as dark spots that blanch when pressed.
This condition also usually does not require treatment, although if bitten, it may bleed profusely, in which case electrocautery may be needed to stop the bleeding.
The aforementioned conditions are quite common.

However, there are less common but important considerations when discovering unexplained black spots or patches in the oral cavity, such as the possibility of melanoma.
The color is not uniformly black; it may appear uneven, with some areas darker and others lighter (referring to the same mole).
Melanoma is a malignant tumor, and due to this potentiality, I recommend that you visit a hospital for further examination, and if necessary, undergo a biopsy.

Sincerely, Dr.
Liu Tian-Cai, Department of Dentistry, Taoyuan Hospital, Ministry of Health and Welfare.

Reply Date: 2004/07/11

More Info


Understanding tongue moles, or any new growth on the tongue, can be a source of concern, especially when you are away from home and unable to seek immediate medical attention. It’s important to approach this topic with a clear understanding of what tongue moles are, their potential causes, associated risks, and what you can expect regarding their lifespan.

Causes of Tongue Moles:
Tongue moles, or pigmented lesions, can arise from several factors. They may be congenital, meaning you were born with them, or they can develop over time due to various reasons. Common causes include:
1. Genetics: Some individuals may have a genetic predisposition to develop moles or pigmented spots on their skin and mucous membranes, including the tongue.

2. Sun Exposure: Although the tongue is not typically exposed to sunlight, excessive UV exposure can lead to changes in skin pigmentation in other areas of the body, which may also affect the tongue indirectly.

3. Hormonal Changes: Hormonal fluctuations, such as those experienced during puberty, pregnancy, or menopause, can lead to the development of moles.

4. Irritation or Trauma: Repeated irritation or trauma to the tongue, such as from biting or dental appliances, can sometimes lead to the formation of moles.

5. Oral Conditions: Certain oral conditions, such as oral melanotic macules, can manifest as dark spots on the tongue.

Risks Associated with Tongue Moles:
While most tongue moles are benign, it is essential to monitor any changes in size, shape, or color. Some signs that may warrant further investigation include:
- Rapid Growth: If the mole grows quickly, it may require evaluation.

- Change in Color: A mole that changes color, especially to black or multiple colors, should be assessed.

- Bleeding or Pain: If the mole becomes painful, bleeds, or develops an ulcer, it is crucial to seek medical attention.

- Associated Symptoms: If you experience other symptoms such as difficulty swallowing, persistent sore throat, or changes in taste, these could indicate a more serious condition.

Lifespan of Tongue Moles:
The lifespan of a mole on the tongue can vary. Some moles may remain stable for years, while others may change or disappear over time. In many cases, benign moles do not require treatment unless they cause discomfort or concern. If you are worried about the mole, it is advisable to consult a healthcare professional when you have the opportunity. They may perform a biopsy if necessary to rule out any malignancy.

What to Do Next:
1. Monitor the Mole: Keep an eye on the mole for any changes in size, shape, or color. Take note of any discomfort or other symptoms that may arise.

2. Seek Professional Advice: When you are able to, consult a healthcare provider or a dentist. They can provide a thorough examination and determine if any further action is needed.

3. Maintain Oral Hygiene: Ensure you maintain good oral hygiene to prevent any irritation that could exacerbate the condition of the mole.

4. Stay Informed: Educate yourself about oral health and the signs of potential issues. This knowledge can help you make informed decisions about your health.

In conclusion, while the appearance of a mole on your tongue can be concerning, understanding its potential causes and risks can help alleviate some anxiety. It is always best to consult with a healthcare professional for personalized advice and peace of mind. Remember, being proactive about your health is key, and seeking help when needed is a sign of strength.

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