Subcutaneous Moles: Are They Normal?

Subcutaneous black mole?

Hello, I would like to ask about the four photos showing subcutaneous black moles on my right forearm.
These have developed over the past six months, totaling seven subcutaneous black moles of various sizes.
I have fair skin and many moles.
Are these subcutaneous moles normal? Thank you! 😃

XING, 20~29 year old female. Ask Date: 2016/07/19

Dr. Wu Yuxin reply Dermatology

The Medical Act stipulates that "a physician shall not administer treatment or prescribe medication without personally examining the patient," and therefore, online diagnosis is also not permitted.
If you are experiencing significant distress, it is advisable to seek medical attention as soon as possible.

Reply Date: 2016/07/19

More Info

When it comes to subcutaneous moles, also known as nevi, it is essential to understand their characteristics and what may indicate a need for further evaluation. Moles are common skin growths that can vary in size, shape, and color. They are typically benign, but changes in their appearance can sometimes signal underlying issues.

From your description, you mentioned that you have developed seven subcutaneous moles on your right forearm over the past six months. The fact that these moles are new and have appeared relatively quickly can be a point of concern, especially if they exhibit any atypical features. Generally, moles are considered normal if they are uniform in color, symmetrical, and have well-defined borders. However, any changes in size, shape, color, or texture, or the development of new moles, should be evaluated by a healthcare professional.

In dermatology, we often use the "ABCDE" rule to assess moles for potential malignancy:
1. Asymmetry: If you draw a line through the mole, the two halves do not match.

2. Border: Irregular, scalloped, or poorly defined edges.

3. Color: The mole has multiple colors or an uneven distribution of color.

4. Diameter: Moles larger than 6mm (about the size of a pencil eraser) are more concerning.

5. Evolving: Any change in size, shape, color, or elevation, or any new symptom such as bleeding, itching, or crusting.

If your moles do not exhibit these concerning features, they may be benign. However, given that they are new and you have a fair complexion with a history of multiple moles, it is advisable to have them evaluated by a dermatologist. They can perform a thorough examination and may recommend a biopsy if they suspect any abnormalities.

Additionally, individuals with fair skin, a history of sunburns, or a family history of skin cancer are at a higher risk for developing melanoma, a serious form of skin cancer. Regular skin checks and monitoring any changes in your moles are crucial for early detection and treatment.

In summary, while many moles are normal and benign, the appearance of new moles, especially in a relatively short time frame, warrants a professional evaluation. It is always better to err on the side of caution when it comes to skin health. If you have concerns about your moles, please consult a dermatologist who can provide personalized advice and care based on your specific situation.

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