In this video, a board-certified dermatologist explains the causes of thickened, yellow, crusty nails due to toenail fungus and outlines various treatment options. The video covers both at-home ...

This article was medically reviewed by Caroline Chang, MD, a board-certified dermatologist and member of the Prevention Medical Review Board, on June 27, 2019. Your weekend pedicure, post-workout ...

Toenail fungus, also known as onychomycosis, is a common condition that affects millions of people worldwide. This pesky infection can cause your nails to thicken, discolor, and even crumble, leading ...