Faint black or brown streaks on nails are often harmless, but scientific evidence shows they may sometimes signal subungual ...

A woman who shared a photo of faint black lines on her thumb and toe nails on Reddit was urged to see a doctor after commenters warned the marks can sometimes indicate melanoma. Medical sources say ...

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

Most people think of nails as something to paint, trim, or show off, but they’re much more than that — they’re tiny health ...

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 ...

If you are staring at a dark spot under your fingernail, you may want to see a dermatologist. It could be a form of melanoma. "It is rare, and it's scary that it's rare, because a lot of people would ...

Your nails serve as more than just a canvas for your favorite polish color. These small but significant parts of your body can reveal important information about your overall health, often acting as ...

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 ...

When doctors examine patients, they often look beyond the presenting symptoms to gather additional diagnostic information. Fingernails, frequently overlooked by patients, provide physicians with ...