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.
Forrest classification can be summarized as grade: (Aa) Arterial hemorrhage ("spurting"). (Ab) Diffuse hemorrhage ("oozing"). (Ba) Non-bleeding visible vessel. (Bb) Adherent clot. (Bc) Flat pigmented spot. (C) Ulcer without recent stigmata of bleeding ("clean base").
