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直肠癌为我国常见的恶性肿瘤之一,全国各地发病水平不一致,死亡率居恶性肿瘤死亡的第二位至第八位,占恶性肿瘤死亡的27.5～1.3％;估计全国每年死于直肠癌有三万人左右。发病多的浙江省嘉善县,直肠癌死亡率为18.3/10万,接近世界高发地区的西、北欧和北美。浙江省直肠癌标化死亡率为3.34/10万,居恶性肿瘤死亡的第五位。上海市直肠癌发病率1963年为3.85/10万,1976年上升为7.72/10万。我国直肠癌发病年龄较欧美早,专科医院的
Rectal cancer is one of the most common malignancies in China. The incidence levels are inconsistent throughout the country. Mortality ranks second to eighth in the death rate of malignant tumors, accounting for 27.5 to 1.3% of the deaths from malignant tumors. It is estimated that there is an annual death from rectal cancer. About 30,000 people. The incidence of rectal cancer in Jiashan County, Zhejiang Province, was 18.3 per 100,000, which is close to the western, northern and North American regions with high incidence. The standardized mortality rate of rectal cancer in Zhejiang was 3.34/100,000, ranking fifth in the death rate of malignant tumors. The incidence of rectal cancer in Shanghai was 3.85 per 100 000 in 1963 and 7.72 per 100,000 in 1976. The age of onset of rectal cancer in our country is earlier than that of Europe and the United States.