When David Edges's wife spotted a faint brown line on his toenail, he didn't think it was anything to worry about. But Kelly, ...

Kelly Heather, 38, ended up needing brain surgery for a tumor — and it started as a discolored line on her fingernail.

However, dark stripes shouldn't be ignored because “it can sometimes be a form of skin cancer that affects the nail bed, called subungual melanoma”. They continue: “Subungual melanoma ...

Medically reviewed by Susan Bard, MD A black line on the nail could be normal, such as when it is just a color variation.

From the mysterious white flecks that sometimes appear on nails to unusual ridging or changes in thickness, what do these ...

Lung cancer is one of the most common and serious types of cancer - and spotting the early signs could save your life.

Faint lines on your fingernail could indicate a rare genetic condition that puts you at risk of kidney, skin ... tumors in their nail beds. Alexandra Lebensohn, a National Cancer Institute ...

The International Agency for Cancer Research also said that most tanning beds use UV radiation, which is linked to skin and eye cancer.

a fungal nail infection can spread to other nails and to the skin, in rare cases causing permanent damage to the nail bed. Ingrown nails cause the sides of the nail to curve into the skin.