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, ...

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 ...

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 ...

Not sure if that green spot is fungus? Dermatologists explain green nail syndrome, the causes, the best next steps, and how to prevent it from returning.

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 ...

An informational industry analysis examining ingredient-level research, marketing positioning trends, regulatory context, and ...