Changes in Moles: When to Seek Dermatological Advice - Dermatology

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Moles on the body becoming lighter or disappearing?


Hello, Dr.
Jiang! I have had a dark brown mole on my chest since childhood, approximately 5mm in diameter.
It is very noticeable but flat, and I usually don’t pay much attention to it.
However, about 4 to 5 years ago, I suddenly noticed that its color has lightened, and recently it has become so light that it is almost skin-colored, making it barely visible.

In another case, my mother has a black mole on the sole of her foot, about 7-8mm in diameter, which is also flat.
It resembles what is referred to as a "melanocytic nevus" or something similar, and recently it has completely disappeared, as if it never existed.

Are these two situations common? Especially regarding my mother’s mole, considering its location, color, and shape, it seems to be something that requires special medical attention.
Now that it has disappeared, does she need to undergo any examinations? If so, should we consult a dermatologist? Thank you for your response!

Xiao Mi, 30~39 year old female. Ask Date: 2009/07/19

Dr. Jiang Yujiao reply Dermatology


Some moles do fade gradually with age, which is normal and not indicative of a malignant transformation.
It would be more appropriate to visit a dermatology clinic for an in-person examination.
Response from Jiang Yujiao.

Reply Date: 2009/07/19

More Info


When it comes to changes in moles or skin lesions, it is essential to approach the situation with caution and awareness. The scenarios you described regarding your mole and your mother's mole raise several important points that warrant attention.

Firstly, the changes in your mole, which has transitioned from a deep brown color to a lighter shade approaching your skin tone, could be a benign change, but it is also crucial to monitor such changes closely. Moles can undergo various transformations over time, and while many changes are harmless, some can indicate underlying issues, including skin cancer. The general rule of thumb is to follow the ABCDE criteria for moles: Asymmetry, Border irregularity, Color variation, Diameter greater than 6mm, and Evolving shape or size. If your mole exhibits any of these characteristics, it is advisable to seek dermatological advice.

In your mother's case, the disappearance of a mole, especially one that was previously dark and larger, is particularly noteworthy. While some moles can fade or disappear naturally, a sudden change in a mole's appearance, especially in terms of color or size, should not be overlooked. The fact that it was located on the sole of her foot, an area that can be prone to various skin conditions, adds another layer of complexity. Moles in unusual locations or those that change significantly should be evaluated by a dermatologist to rule out any serious conditions, including melanoma.

It is common for individuals to feel uncertain about whether to seek medical advice for changes in moles. However, it is always better to err on the side of caution. Dermatologists are trained to assess skin lesions and can provide a thorough examination, which may include a biopsy if deemed necessary. This is particularly important for moles that have changed in color, size, or shape, or if there are any accompanying symptoms such as itching, bleeding, or crusting.

In summary, both you and your mother should consider scheduling an appointment with a dermatologist. They can perform a comprehensive evaluation of the moles in question and determine if any further action is needed. Regular skin checks and being vigilant about changes in your skin are vital components of maintaining skin health, especially as we age or if there is a family history of skin cancer. Remember, early detection is key in managing skin conditions effectively.

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