Ridges in nails aren't all about the skin—they can ... Sometimes, though, they point to a skin disease like eczema, psoriasis, or chronic paronychia (an infection of the nail folds that makes ...

However, chronic nail biting or picking can cause scarring that leads to permanent ridges. Chronic inflammatory skin ...

When doctors examine patients, they often look beyond the presenting symptoms to gather additional diagnostic information.

A panelist discusses how new data from the 2025 American Academy of Dermatology Annual Meeting (AAD 2025) demonstrates tildrakizumab’s efficacy in treating nail psoriasis, with the 100-mg dose ...