Most of us think about nail color as an aesthetic choice—a bold red for date night or a soft pink for everyday polish. But what happens when your nails take on a yellow tint all on their own? Suddenly ...

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 ...