From the image and history, this most likely appears to be a subungual hematoma (collection of blood under the nail) caused by repeated pressure or trauma from tight footwear. This commonly occurs when shoes compress the toe repeatedly.
Next Steps
• Avoid wearing tight or narrow shoes and switch to comfortable, well-fitting footwear.
• Keep the nail clean and dry and avoid further trauma to the area.
• In most cases, the dark spot gradually moves forward and disappears as the nail grows out over a few weeks to months.
• If there is pain, swelling, or the discoloration increases, consult a doctor for examination.
Helpful Tips / Word of Caution:
• Do not try to puncture or remove the nail yourself.
• If the dark patch does not move with nail growth over 2–3 months, or spreads to surrounding skin, it should be evaluated by a dermatologist to rule out other causes.
If needed, the patient may consult online with me, with clearer close-up images for more accurate guidance.
Answered2026-03-14 08:35:31
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