4 doctors weighed in:

I have a dark brown vertical line on my right thumbnail. What could this be? Melanoma?

4 doctors weighed in
Dr. Christopher Scott
Dermatology
1 doctor agrees

In brief: Need evaluation

A linear dark streak on the nail needs to be evaluated by a physician to rule out melanoma.
If the proximal nail fold (at the cuticle) is discolored, the urgency for evaluation escalates. There are other reasons for nail pigmentation (exogenous stain, normal mole) but melanoma risk must be assessed.

In brief: Need evaluation

A linear dark streak on the nail needs to be evaluated by a physician to rule out melanoma.
If the proximal nail fold (at the cuticle) is discolored, the urgency for evaluation escalates. There are other reasons for nail pigmentation (exogenous stain, normal mole) but melanoma risk must be assessed.
Dr. Christopher Scott
Dr. Christopher Scott
Thank
Dr. Travis Kidner
Surgery - Oncology

In brief: Time to see your doc

A vertical line could be a sign of melanoma.
Time to see your friendly dermatologist.

In brief: Time to see your doc

A vertical line could be a sign of melanoma.
Time to see your friendly dermatologist.
Dr. Travis Kidner
Dr. Travis Kidner
Thank
Dr. Richard Orr
Surgery - Oncology

In brief: Maybe

Definitely have it checked out.
You can start with a primary doc, but you may need to see a dermatologist. Here are some examples http://www.Dermnet.Com/images/nail-melanoma/.

In brief: Maybe

Definitely have it checked out.
You can start with a primary doc, but you may need to see a dermatologist. Here are some examples http://www.Dermnet.Com/images/nail-melanoma/.
Dr. Richard Orr
Dr. Richard Orr
Thank
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