I'm noticing a thin black line on the nail of my right thumb, and it seems to be permanent. It's been there for a while, grows with the nail, and isn't just a stain or mark that can be washed off. I recently came across some information online suggesting it might be a sign of melanoma, which is a bit worrying. I'm aware that online info can sometimes be exaggerated, but I want to be sure there's nothing serious going on. Could this be a cause for concern?

Answered by 1 Apollo Doctors

Dr Anshul Maheshwari

General Practitioner

MBBS
5+ Yrs

Consult Now

Probable diagnosis is psoriasis,eczema,hypothyroidism,injury,rheumatoid arhritis, melanonychia,Hiv,cancer and anemia etc. vit b12 deficiency .Most causes of black lines do not require treatment..Melanoma is a exception.Treatment of the underlying cause .

Dr. Anshul Suggests...

Consult a Dermatologist

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Answered 04/07/2025

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I'm dealing with acne and my doctor recommended I use Sebum Clear N Gel. But now my skin, especially my hands, are getting darker. Could you suggest something that might help improve my skin tone without any side effects?

Visit your doctor for alternate treatment plan

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I've been seeing these black lines on my fingernail for the past few weeks and it seems like they're getting thicker and wider. I'm not sure if this is something to be worried about with my health or if it's just nothing. Should I be concerned?

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I went to a hair treatment clinic for hair fall issues, and they mentioned that three PRP sessions would permanently stop my hair fall. Is that really true, or do I need to keep getting PRP treatments regularly to maintain the hair growth I've gained? I'm a bit worried and just want to get a clear answer.

no prp is not permanant

Answered by 1 Apollo Doctors

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Disclaimer: Answers on Apollo 247 are not intended to replace your doctor advice. Always seek help of a professional doctor in case of an medical emergency or ailment.