Platonychia is characterized by an abnormally flat and broad nail, and may be seen as part of an autosomal-dominant condition in which multiple nail abnormalities are present in many members of a large family. Seen in iron deficiency condition.^[1]

• Koilonychia
• Nail anatomy

• Abraham, S.; Kamath, N.; Pai, G. S.; Pinto, J. (1998). "Nail changes in systemic diseases : A clinical study of 435 cases". Indian Journal of Dermatology, Venereology and Leprology. 64 (3): 144–145. ISSN 0378-6323. PMID 20921746.

• MedGen