Onychophosis
Onychophosis, derived from the Greek terms “onyx” (nail) and “phos” (light/blister, referring to a callus or hardening), is a common and often painful dermatological condition affecting the nail unit. Simply defined, onychophosis is the formation of a localized callus or plug of hyperkeratotic tissue within the nail fold, or sulcus, where the skin meets the […]