Hair Growth on Moles: Should You Be Concerned?

Hair growth on a mole?

Hello Dr.
Hong, I have a mole on my right arm that has been there for several years.
It is about 0.3 mm in size, slightly raised, and has a fairly regular shape.
It hasn't changed much over the years, but it has grown some hair.
I would like to ask you: 1.
Does the presence of hair indicate any potential issues with this mole? Is it a typical mole? 2.
Since it is located on my arm, which is a friction-prone area, is there a higher risk of it undergoing any changes? Attached is a photo: https://ibb.co/qW968yk.
Thank you for your patience in answering my questions, and I appreciate your time in responding.

Zhang, 20~29 year old female. Ask Date: 2021/09/18

Dr. Hong Yuanbin reply Internal Medicine

Hello, based on the photos you provided, it appears to be a typical mole.
Even if it is prone to friction, it should not lead to any pathological changes.
I recommend continuing to monitor its shape, size, and whether there are any secretions.
If there are no significant changes, you likely do not need to worry.
Thank you for your inquiry.

Reply Date: 2021/09/18

More Info

When it comes to understanding hair growth on moles, it's important to consider several factors regarding skin health and potential concerns. Let's break down your questions and provide some insights.

1. Hair Growth on Moles: The presence of hair growing from a mole is generally not a cause for concern. Moles, or nevi, can have hair follicles, and it's quite common for hair to grow from them. This does not necessarily indicate any underlying problem or malignancy. However, the characteristics of the mole itself are crucial in determining whether it is benign or if it requires further evaluation. A mole that has been stable in size, shape, and color over the years, like the one you described (0.3mm, slightly raised, and regular in shape), is typically considered normal. However, any changes in the mole's appearance, such as asymmetry, irregular borders, multiple colors, or an increase in size, should be evaluated by a dermatologist.

2. Location and Friction: Moles located in areas that experience frequent friction or irritation, such as the arms, can sometimes be more prone to changes. While friction itself does not cause a mole to become cancerous, it can lead to irritation or inflammation. If you notice any changes in the mole's appearance or if it becomes painful, itchy, or bleeds, it is essential to seek medical advice. Regular monitoring of the mole is advisable, especially if it is in a location where it may be frequently rubbed or scratched.

3. When to Seek Medical Attention: If you have any concerns about the mole or if you notice any changes, it’s best to consult a dermatologist. They can perform a thorough examination and, if necessary, a biopsy to rule out any potential issues. It’s also a good practice to have any new or changing moles evaluated, especially if you have a family history of skin cancer or if you have many moles.

4. General Skin Care: Protecting your skin from excessive sun exposure is crucial, as UV radiation can increase the risk of skin cancer. Using sunscreen, wearing protective clothing, and avoiding tanning beds can help maintain skin health. Regular skin checks, either by yourself or by a professional, can help catch any changes early.

In summary, hair growth on a stable mole is usually not a concern, but it's essential to monitor the mole for any changes. If you have any doubts or notice any alterations, don't hesitate to reach out to a healthcare professional for peace of mind and proper evaluation. Regular skin checks and sun protection are key components of maintaining skin health and preventing potential issues.

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