especially when they occur with other nail changes like discoloration, pain, or thickness. Fingernail ridges are raised lines ...

You may have this infection if you notice symptoms like brittle and discolored nails. Having fungi on and in your body is normal, but an infection can occur when the fungi overgrow. Risk factors ...

In contrast, koilonychia is a condition where the nail is concave—in some cases, forming a central depression deep enough to ...