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 ...

While there is no optimal nail shape for nail health, strength, and growth, it may help to cut fingernails straight across with slightly rounded edges. However, rounded edges on toenails can increase ...