and Managing Raised Moles in the Armpit Area

Protruding mole in the armpit?

Hello Dr.
Wu,
I have a skin tag-like protruding mole approximately 0.2 cm in size under my right armpit, which is a light black color.
It has not changed in size or color over the years.
I would like to ask Dr.
Wu the following questions:
1.
Regarding this protruding mole located in a frequently rubbed area (the armpit), do you recommend monitoring for any changes and only addressing it if abnormalities arise, or would it be better to consider preventive removal?
2.
If I decide to remove this 0.2 cm skin tag-like protruding mole, can it be treated with cryotherapy, or is it necessary to use electrosurgery or surgical excision?
3.
Based on your years of clinical experience, have you seen (or heard of) any cases of armpit protruding moles undergoing "malignant transformation" due to frequent friction?
Thank you for your guidance, Dr.
Wu.

Axiang, 30~39 year old female. Ask Date: 2021/08/12

Dr. Wu Yuxin reply Dermatology

1.
Generally, it is recommended to just observe.
2.
If testing is desired, surgical intervention is advised; otherwise, electrosurgery or laser removal is preferable.
3.
Lesions are not commonly encountered.

Reply Date: 2021/08/12

More Info

When it comes to raised moles or skin tags in the armpit area, there are several important considerations to keep in mind regarding their management and potential risks.
1. Observation vs. Removal: The mole you described, measuring approximately 0.2 cm and remaining unchanged in size and color over the years, is likely benign, especially if it has not shown any signs of irritation or change. In general, for stable moles that do not exhibit any changes in appearance, color, or texture, observation is often recommended. However, if the mole is located in an area prone to friction, such as the armpit, it may be more susceptible to irritation, which could lead to discomfort or potential changes over time. If you notice any changes—such as an increase in size, color changes, or bleeding—it's advisable to seek evaluation by a healthcare professional.
2. Methods of Removal: If you decide to remove the mole, there are several methods available. Cryotherapy (freezing treatment) is a common option for skin tags and some benign lesions, but it may not be suitable for all types of moles. For a mole that is more pigmented or has characteristics of a typical mole (nevi), surgical excision or electrosurgery may be more appropriate. These methods allow for complete removal and histological examination, which can provide peace of mind regarding the nature of the lesion. It’s essential to consult with a dermatologist to determine the best approach based on the specific characteristics of your mole.

3. Risk of Malignancy: While most moles and skin tags are benign, there is a small risk that any skin lesion can undergo changes, particularly if it is subjected to chronic irritation or trauma. In clinical practice, there have been rare cases where benign-appearing moles have shown atypical features or changes over time, leading to a diagnosis of melanoma or other skin cancers. However, these cases are not common, and the majority of raised moles in friction-prone areas remain benign. Regular self-examination and awareness of any changes are crucial in early detection of potential issues.

In summary, for a stable mole in the armpit area, regular observation is typically sufficient unless changes occur. If removal is desired, options like cryotherapy, electrosurgery, or excision can be discussed with a dermatologist. Always prioritize monitoring for any changes and consult a healthcare professional if you have concerns about the mole's appearance or if it becomes symptomatic. Regular skin checks and awareness of your skin's condition are key components of maintaining skin health.

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