Moles on the Soles: When to Seek Medical Advice

Mole on the sole of the foot?

I have a mole on the bottom of my left foot that has been there for about 8 years.
Six months ago, I had it surgically removed at the hospital, and the biopsy results showed it was a benign mole.
However, I have a tendency to develop moles easily, and I frequently get new ones.
Recently, I discovered a new mole on the bottom of my right foot.
I would like to know if most moles on the soles of the feet are benign, does that mean I do not need to have it surgically removed for biopsy again? Thank you.

Niming, 10~19 year old female. Ask Date: 2012/01/09

Dr. Yang Zhiya reply Dermatology

Previous moles being benign does not guarantee that new moles are also benign; each mole should be evaluated individually.
It is generally recommended to regularly monitor changes in the color, size, shape, and border integrity of moles.
It is advisable to consult a dermatologist for an examination to determine if removal is recommended.
If removal is not performed, taking photographs every three months for observation is also suggested.

Reply Date: 2012/01/09

More Info

When it comes to moles or nevi on the soles of your feet, it is essential to approach the situation with caution, even if previous biopsies have shown benign results. While it is true that many moles are benign, there are specific characteristics and changes that can indicate a need for further evaluation.
Firstly, it is important to understand that moles can change over time. The ABCDE rule is a helpful guide for assessing moles:
- Asymmetry: If one half of the mole does not match the other half.

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

- Color: A variety of colors (brown, black, tan, red, white, or blue) within the same mole.

- Diameter: Moles larger than 6mm (about the size of a pencil eraser) should be evaluated.

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

Given that you have a history of easily developing new moles and that you recently discovered a new mole on your right foot, it is prudent to monitor this new growth closely. Even if most moles are benign, the presence of multiple moles, especially in individuals with a tendency to develop them, can increase the risk of melanoma, a serious form of skin cancer.

While your previous mole was confirmed to be benign, it does not guarantee that all future moles will be the same. The fact that you have a family history of moles and a tendency to develop them means you should be vigilant. If the new mole exhibits any of the ABCDE characteristics mentioned above, or if it changes in any way, you should seek medical advice promptly.

In terms of whether or not to have the new mole surgically removed and biopsied, it is generally advisable to err on the side of caution. If you have any concerns about the appearance or changes in the new mole, or if it causes discomfort, it is best to consult a dermatologist. They can perform a thorough examination and determine if a biopsy is necessary.
Additionally, regular skin checks by a healthcare professional can help in early detection of any potential issues. If you have a history of skin cancer in your family or personal history, it may be beneficial to have more frequent check-ups.

In summary, while many moles are benign, it is crucial to monitor any new growths closely and seek medical advice if you notice any changes or have concerns. Regular dermatological evaluations can provide peace of mind and ensure that any potential issues are addressed promptly. Always prioritize your health and safety when it comes to skin changes, especially in areas like the soles of your feet where visibility and monitoring can be challenging.

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