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.
Dermoscopy of a recent hematoma (a), presenting as a red-to-black discoloration of the fingernail and proximal fading of the red color, and of a late stage of the same subungual hematoma (b), presenting with a darker color. Magnification, ×10.
