Your nails might look clean, but the space beneath them is a tiny ecosystem—one that collects more bacteria than most people realize. From keyboards to grocery carts to your phone screen, your hands ...

Even after handwashing, bacteria often remain under the nails. They’re bold and glamorous, but beneath them lie bacteria and fungi that could harm your health. According to Jeffrey Kaplan, a biology ...

Should you trim your cuticles? How do you cut a hangnail? Is it better to use a cardboard or crystal file? Dermatologists and a nail technician share basic nail health tips.