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 ...

Spencer Kroll, MD, has a book on his shelf that he used in medical school. In it, there’s information about a once-common practice for doctors. When they’d shake the patient’s hand upon entering the ...

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

Dr. Lindsey Zubritsky, a board-certified dermatologist based in Mississippi, is “begging” her 1.4 million TikTok followers to check their nails for a vertical line, which could indicate a subungual ...

The pale half- moon shape at the base of your nails, called the lunula, is more than just a nail feature. It can reflect how well your body is functio ...