From trauma to a toenail fungus, there are many reasons why you may have a black toenail. Here's what it means, how to treat ...

black, or even green," Weiss says. These can pop up anywhere on the nail, either in spots or vertically along the nail. Like many fungal infections, there are a few way to develop a nail fungus.

Black fungus also called Mucormycosis is a fungal infection that is being observed in people who are recovering or have recovered from COVID-19. COVID-19 medication leaves the immune system weak ...

Nail fungus is sneaky and stubborn. It can be hidden in bowling shoes, your gym’s sauna, or your community pool. If you spend a lot of time in and around water, it might slowly develop.