1, Umuzenguruko uzunguruka mugihe cyo kuzengurutsa impeta 3-mpeta, neza neza.
2, Byakozwe nubuvuzi bukomeye butagira ibyuma-butanga ibintu neza kandi byihuse.
3, Oval, impande esheshatu cyangwa ukwezi gutambitse, hamwe ninsinga zoroshye, zifata polyps ntoya byoroshye
4, Gufungura neza no gufunga uburyo bworoshye bwo gukoresha
5, Icyatsi cyoroshye kugirango wirinde kwangirika kumuyoboro wa endoskopi