Medically reviewed by Danielle McNeil, D.P.M There are four main types of fungal toenail infections that differ by the ...

Nail fungus, or onychomycosis ... Some common causes of ingrown toenails include cutting the nails too short or not straight across, injury to the toenail, and wearing shoes that crowd the ...

Nail fungus isn’t just an embarrassing condition. For millions of people, it’s a recurring battle — thick, discolored, brittle nails that resist every cream, spray, and soak on the market.