The main feature of retronychia, a nail disorder of the toes, is the growth of new nail under prior nail growth. But this layering of nails is not always readily apparent on clinical examination, ...

Subungual onychomycosis is the most common type of toenail fungus and affects the nail bed and underside of the nail. White superficial onychomycosis causes white spots and flaky patches on the ...

As unsightly as it is, the infection is usually manageable — but only with the right treatment. Here’s how to kick it. Credit...Joyce Lee for The New York Times Supported by By Caroline Hopkins Q: It ...

Susan Bard, MD, is a board-certified general and procedural dermatologist with the American Board of Dermatology and a Fellow of the American College of Mohs Surgery.

Courtney is a registered nurse with over 13 years of experience in the clinical setting, helping individuals navigate their way through their healthcare journeys. She has been in the frontlines ...

Retronychia represents a relatively uncommon but increasingly recognized toenail disorder that disproportionately affects young adult women. The condition occurs when a toenail stops growing forward ...

Though it can cause extreme discoloration, there's a lot you can do treat it—and stop it from happening again.

Nail biting is a common behavior often viewed as nothing more than an annoying habit. The behavior is all too often ignored. However, nail biting can be serious and it is a misunderstood and ...