Effects of Changtai granules, a traditional compound Chinese medicine, on chronic trinitrobenzene sulfonic acid-induced colitis in rats

Table 1 Criteria for scoring the gross morphologic damage.

Score	Gross morphology
0	No damage
1	Localized hyperemia with no ulcers
2	Liner ulcers with no significant inflammation
3	Liner ulcers with inflammation at one site
4	More ulcerative and inflammatory sites, the size of ulcers <1 cm
5	Multiple inflammations and ulcers, the size of ulcers ≥1 cm