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black spot on my finger appeared literally overnight.

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Hi there, I have a tiny black spot on my finger that appeared literally overnight. It doesn't itch, it's not raised. I'm concerned that it could be cancerous. I'd like to attach a picture for your review, but for some reason, I'm unable to on this site.

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replied September 25th, 2012
Skin Cancer Answer A38985

Welcome to the ehealthforum and I am really glad to help you out. Your concern is regarding the tiny black spot on the finger which you have noticed recently. As a thumb rule, any area of hyperpigmentation should be evaluated for a melanoma from a dermatologist. Melanoma (skin cancer) has an irregular border, is asymmetrical, uneven color and increasing in size. You also should have it checked if it bleeds, oozes, itches, appear scaly, or become tender or painful.
However, I must assure you that melanoma doesn’t appear overnight.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care.

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