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 ...

White spots on your nails are often the result of a nail injury called leukonychia. Other potential causes of white spots in your nails include allergies, fungal infection, mineral deficiency, or ...

In most cases, it's just a matter of keeping the nails and nail bed healthy while waiting for the spots to grow out. If a considerable amount of time, say, six months or more has passed and the ...

White spots can also be the result of repeated trauma to the nail bed — this means that getting manicures too often can cause spots, even if there isn't a significant injury, says Engelman.