Melanonychia, also known as a dark or black line on the nail, causes a streak of dark pigmentation that runs along the nail ...

Fingernails, often overlooked, are biological indicators of health. Conditions like clubbing, white flecks (leukonychia), ...

Melanonychia is a brown or black stain in your fingernail or toenail. You can have a dark line on one nail, a few nails, or all of your nails. The line is caused by the natural color in your body ...

A nail technician has claims that your nails could reveal whether you’ve got underlying health conditions – and two of her clients found out they had tumors, all because of their nails. Nail ...

(Gray News) - A brown line on a mother’s fingernail turned out to be a rare form of melanoma, according to the Cleveland Clinic. Lauren Koltcz, 45, said she noticed a brown streak on her thumbnail one ...