As Lauren Koltcz flips through the pages of her book, she can’t help but glance down at the scar forming on her left thumb. In March, the entire nail had to be surgically removed after she was ...

There are 10 potential health indicators right at your fingertips.

(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 ...