The colonoscopy report card determines the presence or absence of tumor mainly endoscopic description and endoscopic diagnosis. The colonoscopy report card usually consists of two parts, namely, endoscopic diagnosis and endoscopic description. If the endoscopic diagnosis reveals polyps, tumors, and inflammation, it is necessary to continue to look at the endoscopic description, and if it reveals inflammation and erosion, it is necessary to look at the site, so as to facilitate the targeted examination in the future review, and to facilitate the focus of the examination and observation. If a tumor is found, the site also needs to be looked at first, and then the size of the tumor as well as the depth of tumor infiltration. If polyps are found, the specific location of the polyps as well as the size and shape of the polyps need to be described. Overall, the colonoscopy report card can determine the presence or absence of tumors through endoscopic diagnosis and endoscopic description.