Skip navigation

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Results 1 - 2 of 2 for Abnormality of the nail
  1. Nail Diseases (National Library of Medicine)  
    Your toenails and fingernails protect the tissues of your toes and fingers. They are made up of layers of a hardened protein called keratin, which is also ...
  2. Birthmarks (National Library of Medicine)  
    Birthmarks are abnormalities of the skin that are present when a baby is born. There are two types of birthmarks. Vascular ...