From trauma to a toenail fungus, there are many reasons why you may have a black toenail. Here's what it means, how to treat ...

The efficacy and safety of efinaconazole 10% solution is acceptable among older adults with onychomycosis and comparable to the general population.

Nail Anatomy The nail plate originates from the matrix that is located under the proximal nail fold. It is composed of keratin, very little water, and an even smaller amount of lipid. The ...

First, I found out that alligator penises are almost never flaccid (oh, hello, by the way). Then, I discovered that under the ...

Hair, nail & skin disorders: The role of trace mineral deficiency Imagine a family of ten going through a famine. To conserve food, it might seem logical to ration it equally among all family members.

Beyond chronic pressure from ill-fitting shoes, acute toenail injuries can also trigger retronychia. Stubbing a toe forcefully, dropping a heavy object on the foot, or experiencing direct nail ...

Nail-biting is a common BFRB that causes real harm but is often dismissed as a harmless habit. Onychophagia has complex roots—emotional, neurological, and behavioral—not just stress or boredom.

How minoxidil affects nail growth The principle behind using minoxidil for nail enhancement follows similar logic to its application for hair growth. Nails grow from matrix cells at the base of ...

Nail Clubbing If you notice that the end portion of the nail raises up and rounds out, there is a big chance you are dealing with nail clubbing. This disorder does not appear at once – it graduates ...

Nail Experts Discuss How to Diagnose Common — and Not-So-Common — Nail Disorders – An American Academy of Dermatology Association Reading Room selection February 14, 2025 • 8 min read ...

Other methods for diagnosing nail disorders include: Amputation of the third phalanx, or the lowest toe digit, for histological analysis of the claw plate A bacterial culture to detect infections ...