Dark polish. Red polish. Back-to-back gels. Peeling a bunch of oranges to snack on. There are any number of reasons why your nails might be stained yellow, and luckily, there is an easy fix for ...

As simple an issue as yellow nails may seem, it can be tough for even experts to pinpoint the cause. "Every time somebody comes in with a nail change, I put on my super-sleuth hat," Dr. Kristen Lo ...