Table 1.

The pathological stage of hepatic fibrosis

Stage	Description	Criteria
S0	No fibrosis	Normal connective tissue
S1	Portal fibrosis	Fibrous portal expansion
S2	Periportal fibrosis	Periportal or rare portal-portal septa
S3	Septal fibrosis	Fibrous septa with architectural distortion; no obvious cirrhosis
S4	Early cirrhosis	Cirrhosis