大肠癌是常见的癌症之一。据统计,近年来其发病率呈上升趋势。因此,应重视大肠癌的早期防治。大肠癌的病因:临床发现大肠癌与消化道的疾病有一定关系。如日本血吸虫病、溃疡性结肠炎、多发性肠息肉(即大肠腺瘤)等。有高脂肪饮食习惯者大肠癌的发病率较高。这是因为高脂肪饮食可使粪便中的胆酸、胆固醇代谢产物及厌氧菌含量明显增 Colorectal cancer is one of the common cancers. According to statistics, its incidence has been on the rise in recent years. Therefore, early prevention and treatment of colorectal cancer should be emphasized. The cause of colorectal cancer: clinically found that colorectal cancer and gastrointestinal diseases have a certain relationship. Such as schistosomiasis in Japan, ulcerative colitis, multiple intestinal polyps (ie, colorectal adenoma) and so on. The incidence of colorectal cancer is high in people with high-fat diet. This is because a high-fat diet can increase the levels of bile acids, cholesterol metabolites, and anaerobic bacteria in feces.