HOW STUFF WORKS
QUIZZES

FOLLOW US
Fact or Fiction: Fingernails
by Staff
Fingernails are an odd thing if you really think about them. What are they there for, anyway? And why do we file, buff and paint them outrageous colors? Nails are for more than decoration, though. Did you know that they can indicate if you have serious health problems? Take our quiz to find out what could be wrong if you have yellow or purple nails.