Melasma?: If a dark spot of melasma overlays the nail bed, the melanin will color the nail as a vertical line.
Answered 5/10/2017
4.8k views
6 doctors weighed in across 3 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question