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Rough nails

Your nails usually are smooth. Sometimes, though, they can become rough and grow thicker. Nobody really knows what causes rough nails. It might mean you've got a skin problem, like a rash called eczema. There are other problems that can cause rough nails, too.

If you notice this happening, ask your parents to take you to a skin doctor (dermatologist). The skin doctor can figure out what's causing your nails to become rough and treat you.  

                Fingernail with ridgesAn example of a rough nail.

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Photo references:
Photo used with permission of Elsevier.  Dermatology DDxDeck, Vol 1, Pg 154. Copyright Elsevier (2006).