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What Does A Black Growth On The Thumbnail Signify?

Posted on Thu, 4 May 2023

Question: I have a black spot on my thumb nail. It started as a small dot and is spreading. I don't injury the thumb or nail so I don't think its bleed trapped there

Answered by Dr. Dr. Kakkar (36 minutes later)

Brief Answer:
Need more information.

Detailed Answer:

Hello,

How long since you have noticed this?

Please answer and let me know if I can assist you further.

Regards,
Dr. Kakkar S., Dermatologist

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar

Follow up: Dr. Dr. Kakkar (14 hours later)

About a month or so

Answered by Dr. Dr. Kakkar (11 hours later)

Brief Answer:
I suggest a dermoscopy.

Detailed Answer:

Hi,

It could be just a hematoma which can sometimes easily happen due to minor unnoticed trauma or strenuous activity. However, I suggest you get a dermoscopy examination so as to be sure. At this point, only dermoscopy would reliably distinguish between a hematoma and a melanoma. Another option is a biopsy but that is an invasive procedure A hematoma usually drifts distally with time but it may be very slow and sometimes may take 2-3 months to appreciate only a slight drift.

Hope I have answered your query.

Regards,
Dr. Kakkar S., Dermatologist

Note: Hope the answers resolves your concerns, however for further guidance of skin related queries consult our Dermatologist.Click here to book a consultation

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar