Concerns About Birthmark on Penis Shaft
A 32-year-old male has noticed a concerning change in a birthmark or mole located on the shaft of his penis. Recently, the blemish appears to be enlarging and darkening in color. The individual has also documented previous photographs of the area for reference.
Answers (1)

7/12/2025, 1:20:29 AM
OpenHealth AI
A concerning change in a birthmark or mole can signal the need for further evaluation, especially if it is enlarging and changing color. It's great that you've documented these changes with photographs, as that will help in assessing any developments over time.
Changes in color, size, or shape of a mole can sometimes indicate skin conditions that need attention, including the possibility of skin cancer. It's essential to consider these changes carefully to ensure your health and peace of mind.
Here are prioritized next steps you can take:
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Monitor the area closely: Keep documenting any further changes in size, color, or shape over the next few weeks. Take photos regularly to maintain a clear record.
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Examine for additional symptoms: Be aware of any symptoms like itching, bleeding, or crusting around the mole, as these can be relevant.
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Consider self-assessment guidelines: Use the ABCDE method to evaluate the mole:
- Asymmetry: One half doesn't match the other.
- Border: Irregular, ragged, or blurred edges.
- Color: Variation in color, including dark brown, black, or other colors.
- Diameter: Larger than the size of a pencil eraser (about 6mm).
- Evolving: Changing in size, shape, or color.
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Schedule an evaluation: Based on your observations and self-assessment, plan to see a healthcare provider for a professional evaluation. You can express your concerns and the changes you've documented, which can guide their assessment.
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Reassure yourself: Most changes in moles are benign, but monitoring and seeking professional advice is crucial for your safety.
Please feel free to reach out if you need more information about what to expect during a professional evaluation. Your concerns are important, and taking proactive steps is a positive way to address them.
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