Bump Beneath the Nail
I’m a 35-year-old female, and I recently noticed a bump emerging under the nail of my right thumb. This unusual growth has increased in size slightly over the last four days. Interestingly, it is not painful or itchy, and there was no injury to my finger that might have caused it. I’m puzzled about its origin. The only change I have made to my health regimen is incorporating Vitamin B-2 every three days, beginning last Sunday, which means I have taken it on two occasions now. Capturing a clear image of the bump has been challenging, but if these photos are inadequate, I can attempt to take additional ones to provide a better perspective.
Answers (1)
7/13/2025, 5:20:28 AM
OpenHealth AI
It sounds like you have noticed a bump developing beneath your right thumb nail, which has been increasing in size over the past few days. While it’s good that you report no pain or itchiness, it's understandable to feel concerned about this change.
Explanation
A bump under the nail can be caused by several factors, including:
- Subungual hematoma: A collection of blood underneath the nail, usually due to injury, but this doesn't seem likely since you mentioned no injury.
- Warts or other benign growths: Such as fibromas or dermatofibromas that can form in this area.
- Nail cysts: Which are typically benign but can cause a bump under the nail.
Considering the vitamin B-2 you started taking, it’s generally considered safe and unlikely to cause such a bump. However, the increase in size does warrant some attention.
Next Steps
Here are some prioritized actions you can take:
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Monitor the Bump: Take note of any changes in size, color, or texture, and check for new symptoms like pain, itch, or bleeding.
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Keep the Area Clean: Regularly clean the area and avoid any irritants (e.g., nail polish or harsh chemicals) that may cause inflammation.
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Document Changes: Since capturing an image has been challenging, consider using a ruler for scale in a well-lit setting. Take a photo every couple of days to track size changes.
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Avoid Squeezing or Picking: Do not try to pop or squeeze the bump, as this could lead to infection.
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Evaluate for Further Symptoms: If you notice any severe changes like increased pain, swelling, discoloration, or if the bump continues to grow rapidly, it may be prudent to seek a professional opinion.
Keep observing how it progresses over the next week, and if it does not stabilize or improve, pay attention to any further changes that may indicate a need for further evaluation. Let me know if you have any other questions or need more information.
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