Black line on the nail: Causes, treatments, and pictures

A look at a black line on the nail, a common change that can happen due to a range of causes. Included is detail on the diagnosis and when to see a doctor.

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Ridges in Nails: Causes, Treatments and Prevention

Black line on the nail: Causes, treatments, and pictures

Suddenly, I got a black spot on my left first finger proximal nail fold. What could be the cause? - Quora

Ridges in Fingernails: Causes, Symptoms, Treatment, Prevention

Black line on the nail: Causes, treatments, and pictures

Have you ever had dark black coloring in part of your fingernail that doesn't grow out? - Quora

A dark brown spot appeared on my skin overnight between my fingers. What is it? - Quora

Melanonychia Nail: Causes & Treatment - RemoteDerm

What's Causing That Black Line on Your Nail

Subungual Melanoma: Symptoms of Skin Cancer Under Nail