Diagnosing conditions of the nail can be confounding. Patients may experience delays in treatment due to challenges in diagnosis. While the nail may seem like a cosmetic concern, nail diseases can ...

Lindsay Curtis is a health & medical writer in South Florida. She worked as a communications professional for health nonprofits and the University of Toronto’s Faculty of Medicine and Faculty of ...

Nailfold capillaroscopy identifies distinct changes in capillary density, length, and morphology in patients with conditions such as nail psoriasis, onychomycosis, and retronychia. The single-center, ...

Drug-induced nail disorders are uncommon adverse reactions that can occur as a result of drugs, with nail abnormalities being due to acute damage to the nail unit leading to symptoms associated with ...

Black toenails are usually the result of toenail injury. However, there are other things that can cause a black toenail, including fungal or bacterial infections. Most cases of black toenails aren’t ...

At the 2025 Dermatology Days of Paris conference, held from 2 to 6 December 2025, in Paris, France, Bertrand Richert, MD, PhD, professor in the Dermatology Department, Brugmann and Saint Pierre ...

Thick, yellow, and brittle toenails are often caused by a fungal infection known as onychomycosis. This occurs when yeasts, moulds, or dermatophytes enter small cracks in the nail or surrounding skin, ...

Mark Gurarie is a writer covering health topics, technology, music, books, and culture. He also teaches health science and research writing at George Washington University's School of Medical and ...

Nail fungus and nail psoriasis are two conditions that affect the nails. They have similar symptoms, and you can have both fungus and psoriasis at the same time, but they are different and have ...