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sir, dark vertical line in my finger nail . what causes and what is the treatment? kindly replay me sir

By Anonymous June 19, 2014 - 10:59am
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i am also having this problem. i am having a dark vertical line on my index finger only.
kindly help me what it could be. shall i need to go for a through check up.

June 25, 2015 - 2:21am
Guide (reply to Anonymous)

Hello Anonymous,

Please read my responses to the other two posts for information regarding acral lentiginous melanoma.

Yes, I think you need to be seen by a dermatologist.


June 25, 2015 - 9:13am
EmpowHER Guest
Anonymous (reply to Anonymous)

my finger never get injured. but it is running from cuticle to tip. kindly tell what are other symptoms of melonema.

June 25, 2015 - 2:27am
Guide (reply to Anonymous)

Hello Anonymous,

Acral-lentiginous melanoma (ALM) is a rare form of melanoma that can occur under a fingernail or toenail. It can also be found on the palms of the hands or the soles of the feet. It's more common in blacks and in other people with darker skin pigment.

The first sign may be a “nail streak”-a narrow, dark stripe under the nail.

A new nail streak, not caused by a recent accident or trauma, an enlarging nail streak, a wide or very darkly pigmented streak, or a nail that is separating or lifting up from the nail bed should always be examined by a dermatologist.

A sign of more advanced ALM is when the nail streak has pigmentation in the nail fold skin or when the nail plate is destroyed.


June 25, 2015 - 9:12am

Hello Anonymous,

Is this dark vertical line on only one fingernail or present on all of your fingernails? Have you injured that or those fingers/

Any type of trauma to the fingernail can produce a thin dark line on the fingernail. This is called a splinter hemorrhage. It is not serious, is common, and will eventually go away on its own.

Black lines can indicate a fungal infection. You need to see your doctor for diagnosis and treatment.

Dark lines that run from the cuticle to the tip of the nail can indicate the presence of melanoma. Melanoma is the most dangerous type of skin cancer.

You should be examined by your physician.


June 19, 2014 - 11:20am
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