Table III.

Forrest classification of peptic ulcers in UGIB

Forrest class	Type of lesion	Risk of rebleed if untreated [%]
Ia	Arterial spurting	100
Ib	Arterial oozing	17-100
IIa	Visible vessel	8-81
IIb	Sentinel clot	14-36
IIc	Haematin covered flat spot	0-13
III	No stigmata	0-10