Moles: When to Worry and Aging Effects on Skin

Follow-up Inquiry #191245: Consultation Regarding Moles

Dear Dr.
Wu,
Thank you very much for your response and explanation regarding the inquiry on moles in the article "#191245." I have a general understanding now.
I would like to ask you the following questions:
Q1.
You mentioned, "...pay attention to the moles on your body, and if there are any significant changes, you need to seek medical examination." Does this mean that the two small black moles under my right armpit, as long as they are long-term "unchanged" benign moles, will not undergo malignant changes even though they are located in an area that is frequently subjected to friction and irritation? Therefore, there is no need for preventive measures (such as laser treatment or surgical removal of unchanged benign moles)?
Q2.
Generally speaking, do benign moles on the body tend to fade and disappear with "aging," or once benign moles appear, will they not disappear, and instead, will benign moles only increase with age and not decrease?
I appreciate your guidance in clarifying these questions.
Thank you.

Axiang, 40~49 year old female. Ask Date: 2023/01/09

Dr. Wu Yuxin reply Dermatology

In individuals of Asian descent, melanocytic lesions are more commonly found at the extremities, but most of them require continuous observation, as there are no absolute certainties.
A small percentage of newly formed moles may indeed disappear, but the majority will not.

Reply Date: 2023/01/09

More Info

When it comes to understanding moles and their behavior over time, it's essential to recognize the characteristics of benign moles and the factors that can affect their appearance as we age.

Q1: Stability of Benign Moles
You mentioned having two small black moles under your armpit that have remained unchanged over time. Generally, if a mole is stable—meaning it has not changed in size, shape, color, or texture—it is typically considered benign. The fact that these moles are located in an area that experiences friction does not inherently increase the risk of malignant transformation, especially if they have been consistent in their appearance.
However, it is important to remain vigilant. While benign moles can exist without causing harm, any noticeable changes should prompt a visit to a dermatologist. This includes changes in color, irregular borders, asymmetry, or any new symptoms such as itching or bleeding. As for preventive measures, if the moles are truly stable and benign, there is usually no need for surgical removal or laser treatment unless they become bothersome or you have a personal preference for removal.

Q2: Aging and Moles
Regarding the behavior of benign moles as we age, it is common for some moles to fade or become less prominent over time. This can be due to various factors, including changes in skin texture, pigmentation, and overall skin health. However, it is also true that many individuals will develop new moles as they age, particularly during childhood and adolescence, and even into adulthood.
The process of aging can lead to a variety of changes in the skin, including the appearance of new moles, the fading of existing ones, and the development of skin tags or other benign lesions. While some moles may diminish, others may remain stable or even become more pronounced due to factors such as sun exposure, hormonal changes, and genetics.

Conclusion
In summary, benign moles that remain unchanged over time are generally not a cause for concern, even in areas subject to friction. However, it is crucial to monitor them for any changes. As for aging, while some moles may fade, it is also common to develop new ones. Regular skin checks, either self-examinations or professional evaluations, are essential for maintaining skin health and addressing any concerns promptly. If you have any doubts or notice changes in your moles, consulting a dermatologist is always a prudent step.
Maintaining a proactive approach to skin health, including sun protection and regular check-ups, can help mitigate risks associated with skin changes over time.

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