The Forrest Classification of Peptic Ulcers (Stigmata of recent haemorrhage)

Forrest 1a		Forrest 1b
Spurting bleeding		Non-spurting active bleeding
Forrest 2a		Forrest 2b
Non-bleeding visible vessel		Non-bleeding ulcer with an adherent clot
Forrest 2c		Forrest 3
Ulcer with haematin-covered base		Ulcer with clean base