Onychoatrophy is a faulty underdevelopment of the nail that may be congenital or acquired, in which the nail is thinned and smaller.[1]: 784 

References edit

  1. ^ James, William; Berger, Timothy; Elston, Dirk (2005). Andrews' Diseases of the Skin: Clinical Dermatology. (10th ed.). Saunders. ISBN 0-7216-2921-0.