Terry's Nails Without Systemic Disease: A Case Report of a Unique Clinical Sign.

Terry's nails are a clinical sign of apparent leukonychia, marked by proximal nail whitening and a preserved distal band, commonly linked to systemic diseases such as liver cirrhosis and chronic kidney disease. We report a case of a 26-year-old man with asymptomatic leukonychia of all fingernails and toenails since early childhood. Physical examination revealed features consistent with Terry's nails. A comprehensive systemic evaluation was unremarkable. This case demonstrates that idiopathic Terry's nails, though extremely rare, can occur in otherwise healthy individuals.