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. 2022 Oct 20;24(12):171–181. doi: 10.1007/s11894-022-00852-7

Table 2.

Mayo clinic endoscopic scoring

Mayo endoscopic score
Grade Endoscopic appearance
0 Normal
1 Erythema, mild friability
2 Marked erythema and friability, erosions
3 Spontaneous bleeding, mucosal ulcerations