Changes Noticed in a Birthmark on My Foot
For quite some time, I've had a charming little dark spot on the underside of my foot that I found rather appealing. However, recently, during my shower routine, I glanced at the back of my foot and noticed that this mole or birthmark has enlarged and now appears to have an uneven shape. I'm aware that benign black or brown spots can develop on the soles, and I’m sincerely hoping this is one of those harmless variations. At 43 years old, I maintain good health and have spent my life in the Nordic region, where sunlight is scarce. As someone of mixed African and European heritage, I typically experience sun exposure only for a week or two each year, thanks to our unique climate. I don't consume alcohol or tobacco and only take supplements such as vitamins D and K, omega-3, magnesium, zinc, and a blend of chlorella and spirulina for immune support. Since I usually wear sneakers during the summer, my feet get little sun, which might contribute to the nature of this spot. If needed, I'm willing to share visual evidence but will need to sort out how to do that using my mobile device.
Answers (1)

8/27/2025, 12:33:44 PM
OpenHealth AI
It's understandable to be concerned about changes in a birthmark or mole, especially with the new features you've described. The enlargement and uneven shape are important factors to consider. While many changes can be benign, significant alterations in a mole can sometimes indicate health issues that warrant further evaluation.
Explanation
Over time, moles and birthmarks can change due to various factors, including hormonal changes, aging, or skin irritation. However, when you notice a mole becoming larger, having an irregular shape, or evolving in any way, it's essential to pay attention. Guidelines from organizations like the American Academy of Dermatology suggest monitoring moles for changes using the ABCDE method:
- Asymmetry: If one half of the mole doesn't match the other.
- Border: If the edges are irregular, ragged, or blurred.
- Color: If the color is not uniform or has multiple shades.
- Diameter: If the mole is larger than 6 millimeters (about the size of a pencil eraser).
- Evolving: If it's changing in size, shape, or color over time.
Next Steps
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Monitor Your Mole: Take note of any further changes in size, shape, color, or if it becomes itchy or bleeds. Keep a record of your observations.
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Photograph the Mole: Use your mobile device to take clear pictures of the mole to keep a visual record. This can be helpful for any future consultations.
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Limit Irritation: Try to avoid any friction or irritation from shoes or the shower that might stress the area around the mole.
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Seek Professional Evaluation: Given the changes in your mole, it is important to consult a dermatologist for a thorough examination. They may recommend a skin check or a biopsy, if necessary, to rule out any concerns.
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Educate Yourself: Familiarize yourself with skin checks and the characteristics of healthy skin versus potentially concerning moles to empower yourself moving forward.
Though it’s natural to feel apprehensive about changes in your skin, being proactive is key to maintaining your health. Stay observant and take those steps for your peace of mind. If you have any other questions or need further guidance, feel free to ask.
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