Toenail fungus, or onychomycosis, is a nail infection that can make your toenails thicker, change color, or break apart. It affects about one in 10 people and is common in adults over 60. While fungi ...

Take a quick look at your toenails. If they're thick, yellowed or flaky, you might be among the 50 percent of Americans who have toenail fungus but don't realize it. A fungal nail infection is caused ...

Hello, dear readers! Welcome to a bonus letters column. We have some interesting (and familiar) topics to cover, so we’ll dive right in. • We have written about the causes and challenges of toenail ...