近10年来的统计资料表明,大肠癌在我国已成为常见的恶性肿瘤之一。而且,我国大肠癌的发病年龄比西方高发国家提早10～20年。特别是30岁以下的青年人,大肠癌发病率比西方国家高出10～30倍。综合各地统计,我国每6～11名大肠癌患者中,就有1名为30岁以下的青年。由于对这一特点认识不足,即使是一些医疗水平较高的单位,青年大肠 Statistical data for the past 10 years indicate that colorectal cancer has become one of the common malignant tumors in China. Moreover, the age of onset of colorectal cancer in China is 10 to 20 years earlier than that in the high-incidence countries in the West. Especially young people under the age of 30, the incidence of colorectal cancer is 10 to 30 times higher than in Western countries. According to statistics from various regions, 1 out of 6 to 11 colorectal cancer patients in China is younger than 30 years old. Due to lack of understanding of this feature, even in some units with higher medical standards, the young colon