在欧洲许多国家,大肠癌的早期发现率为70%~80%,而我国大肠癌早晚期发现比例与国外正相反。其实,大肠癌是可以治愈的恶性肿瘤之一,只要早发现、早治疗,早期大肠癌手术切除后90%患者甚至不需要化疗,可以正常生活一辈子。但到了中晚期,治疗难度大,有些患者甚至会失去肛门,改为人工造口,护理非常麻烦。晚期已发生转移性的结肠癌主要依赖于化疗,但总体疗效差,患者5年生存率还不到 In many European countries, the early detection rate of colorectal cancer is 70% ~ 80%, while the proportion of early and late detection of colorectal cancer in China is the opposite. In fact, colorectal cancer is one of the malignant tumors that can be cured. As long as early detection and early treatment, 90% of patients with early colorectal cancer resection do not even need chemotherapy and can live a normal life. But in the late, the treatment is difficult, some patients even lose the anus, to artificial stoma, care is very troublesome. Late metastases of colon cancer have been mainly dependent on chemotherapy, but the overall effect is poor, the patient’s 5-year survival rate less than