The incidence of colorectal cancer is closely related to lifestyle The causes of colorectal cancer are complex, but the incidence of colorectal cancer is also closely related to lifestyle, for example, dietary habits of high protein, high fat and low fiber, as well as obesity and lack of physical exercise can increase the risk of colorectal cancer. With the development of economy, people’s lifestyle and diet structure changes, the incidence of colorectal cancer is increasing. China has entered the ranks of high incidence areas of colorectal cancer, and this disease is increasingly threatening people’s physical and mental health. Westernized diet and colorectal cancer Epidemiological investigations show that colorectal cancer “likes the poor and loves the rich” in the incidence of weekday intake of saturated fat, total fat, total protein, cholesterol and oleic acid more people, the risk of colorectal cancer increases, of which the saturated fatty acid intake of people with the greatest risk. In the past few years, the dietary habits of the Chinese people have undergone a rapid transformation. the China Health and Nutrition Survey, completed between 1989 and 1993, showed that the proportion of adults consuming high-fat diets had risen from 22.8% to 66.6%, and that the dietary habits of the Chinese people were rapidly shifting to the typical dietary patterns of the western industrialized countries. American fast food like McDonald’s can be found everywhere, and high-fat, high-sugar and high-energy foods are quietly becoming popular in dietary habits. The Role of Publicity and Education In contrast to China’s gradual westernization of dietary habits and the rising incidence of colorectal cancer, the incidence and mortality rates of colorectal cancer in the United States have been declining year after year. The Morbidity and Mortality Weekly Report issued by the U.S. Centers for Disease Control and Prevention (CDC) reported that the percentage of colorectal cancer screenings among people aged 50-75 years was 52.3% in 2002, and increased to 65.4% in 2010, with the incidence rate decreasing by 3.4% and the mortality rate decreasing by 3.0% annually from 2003 to 2007. 35 states had a significant decrease in incidence rates, and 49 states had a significant decrease in mortality rates. Decreases. From 2003-2007, there were 66,000 fewer new cases of colon cancer and 32,000 fewer deaths from colon cancer. Among the reasons for the decrease in mortality were 1) improved screening rates: contributed about 50 percentage points. 2) reduction in risk factors: such as smoking and obesity contributed 35 percentage points. 3) improved treatments: contributed 12 percentage points. The decline in morbidity and mortality is largely attributed to proper screening and publicity education, which also verifies the saying that even the best surgical skills cannot compare with early detection of tumors, and even the best early diagnostic techniques cannot compare with scientific health awareness. Colorectal cancer is not scary, just afraid that you don’t understand it. Among malignant tumors in all parts of the body, especially among digestive tract tumors, colorectal cancer is one of the tumors with the best treatment effect. Through standardized multidisciplinary comprehensive treatment, the therapeutic effect can be further improved and a considerable number of colorectal cancer patients can be completely cured. Regardless of the level of treatment, the importance of early detection cannot be ignored. According to the data of 2014, the 5-year survival rate of stage I patients can reach more than 90%, while the survival rate of stage IV patients is only slightly more than 10%, so it is still necessary to emphasize early detection and early diagnosis. Early detection of colorectal cancer relies heavily on rational screening rather than waiting for symptoms to appear. From the perspective of health economics, the population can be categorized into three groups, with different groups receiving different screening programs. General population: refers to those who are not at high risk of developing colorectal cancer. We recommend that this group of people can start to receive colorectal cancer screening at the age of 50, and usually undergo the examination every 5-10 years, and the examination methods mainly include fecal occult blood and colonoscopy. High-risk groups: People with high risk of colorectal cancer such as high-fat, low-fiber diet and family history of digestive tract tumors can start to receive colorectal cancer screening at the age of 40-45 years old, and will be examined once every 3-5 years on average. People with family heredity: For people with family hereditary diseases (familial adenomatous polyposis, Lynch syndrome, etc.), we suggest that they should go to large oncology centers as early as possible, and determine whether the population has genetic tendency through the careful collection of family history by experienced clinicians and some necessary examinations, including genetic testing. If there is a genetic predisposition, the patient will be closely followed up by the clinician according to the specific follow-up protocol for hereditary tumors. If there is no obvious genetic predisposition, follow-up is conducted according to the screening program for high-risk groups. Colorectal cancer that develops into advanced stages is a disease that can be fatal, but fortunately it can be effectively prevented through reasonable measures. Lifestyle changes include a high-fat, high-protein, low-fiber diet, as well as exercise and weight control. In terms of health awareness, we can learn more about the relevant knowledge, detect pre-cancerous lesions such as colorectal adenomas through proactive physical examination and endoscopy, and intervene (endoscopic removal) to interrupt the cancerous process. There is no absolutely perfect screening program that can guarantee early detection for everyone, but overall it is possible to increase the percentage of early detection by a large percentage. No amount of surgical skill is better than early detection of tumors, and no amount of early diagnostic technology is better than scientific health awareness.