Not being able to see a half-moon, or lunula, on the nails may be a sign of a vitamin deficiency, vitiligo, kidney failure, or another health condition. However, sometimes the lunulae are simply not ...

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 functioning. This article explains what the lunula means, ...