An official website of the United States government
Here’s how you know
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.
... moles, birthmarks, and other areas of the skin: Asymmetry . The shape of one half does not match ... layer of the skin, usually on your face, ears, neck, lips, and backs of your hands; the ...