5岁的伟伟有个毛病,就是大便带血,起初量不多,色暗红,不伴有腹痛,随后有时见腹部不适,或脐周隐痛,血色则转为鲜红。父母带他到儿童医院诊治,大夫分析血样新鲜,可能是大肠里有息肉,建议给孩子做结肠镜检查。可把大肠都看遍了,也没找到息肉和出血。后来发现血是从回盲瓣口流出来,说明出血部位在小肠,是 5-year-old Wei Wei has a problem, that is, blood in the stool, initially not much, dark color, without abdominal pain, then sometimes see the abdominal discomfort, or umbilical pain, the red color into red. Parents took him to the Children’s Hospital for diagnosis and treatment, the doctor analyzed the blood samples fresh, there may be polyps in the large intestine, it is recommended for children to do colonoscopy. The colon can be seen all over, did not find polyps and bleeding. Later, blood was found to flow from the ileocecal valve, indicating that the site of bleeding in the small intestine, is