Colorectal cancer includes colon and rectal cancers, and the sites of colorectal cancer are rectum, sigmoid colon, cecum, ascending colon, descending colon, and transverse colon in order of incidence. The incidence rate increases with age. Due to the increase of human life expectancy, the incidence and mortality rate of colorectal cancer is gradually increasing in China and the world, and it is one of the top ten common malignant tumors; there are 1.02 million new cases and 530,000 deaths per year worldwide. The latest statistics: the incidence rate of colorectal cancer in China has “gone up” year after year, with about 130,000 to 160,000 new cases and 60,000 to 90,000 deaths per year, mostly in large and medium-sized cities, ranking second after stomach cancer in gastrointestinal tumors. What is disturbing is that the statistics of various countries show that the incidence of colorectal cancer, especially colon cancer, is rapidly increasing, and young patients have been occupying a certain proportion. Especially in large and medium-sized cities, the incidence age is around 45 years old. The incidence of colorectal cancer tends to be “urbanized”, with an incidence rate of 20/100,000 and an average annual increase of 2%. This typical urban disease is seriously threatening the health of residents in large and medium-sized cities, and the more affluent areas are, the higher the incidence rate is. The recipes of colorectal cancer patients are generally characterized by “three highs and one low”, i.e. high fat, high protein, high calories and low fiber. In addition, due to the accelerated pace of life, lack of time for exercise and bowel movement is also the main reason why some young people suffer from colorectal cancer. The occurrence of colorectal cancer is directly related to strain and prolonged dry stool and constipation. However, it is also related to internal factors such as bad emotions, mental factors and gastrointestinal dysfunction. Due to the accelerated pace of life, lack of time for exercise and bowel movement is the main reason for some young people to develop colorectal cancer. There are four major features affecting the prognosis of colorectal cancer in young people: First, early detection is rare. As rectal examination is not included in the regular physical examination options, young people are not alert to the disease, and young women are too shy to be examined, so 60% of the diagnosed patients are already in the middle and late stages. Secondly, the degree of malignancy is high. Among the young people diagnosed with colorectal cancer, more than 60% have metastasized and spread. Thirdly, there are many missed diagnoses. Clinical statistics show that the average time from discomfort to consultation and final diagnosis is 5 to 15 months for colon cancer patients under 35 years old, and 70% of them are misdiagnosed as hemorrhoids, enteritis and intestinal worms. Fourth, the treatment effect is poor. Because most of the patients are already in the middle and late stage when diagnosed, the tumor has metastasized or invaded the surrounding tissues and organs, the 5-year survival rate after surgery is less than 30%. In view of the above characteristics, experts reminded the public that they should develop the habit of regular medical checkups when they are young, in addition, they should change their bad dietary habits and eat more coarse grains; it is also important to develop the habit of regular bowel movement. Our standard of living is getting better and better, eating more and more refined, in fact, in the middle of the refining process, we lost a lot of useful things, of which the most important is now considered to be fiber. Once you eat very little fiber, the time it takes for the stool to pass through the intestines is shortened, resulting in a reduction in volume and an increase in the stimulation of carcinogens to the intestines, which is very unfavorable. The longer the feces stays in the body, the more it will cause colorectal cancer. Feces produces carcinogens due to bile acids, and the longer the carcinogens are in contact with the intestines, the more the intestines will be harmed. Many people love to eat fried things, it smells good. But in fact, it is a very bad diet, the main aspects, first of all, once the oil at a high temperature of 160 degrees or more, in fact, is when you cook, the oil smoking 160 degrees or more, this time the oil itself will decompose, decompose some carcinogenic substances. There is also the food you do, if you fry fish, frying meat, protein will denature, will also break down carcinogens. Many people in Beijing love to eat lamb skewers, and one lamb skewer contains phenylpropanoid, which is a strong carcinogen, equivalent to 500 cigarettes. However, there is no need to be too afraid, because the process of tumor development is a very long and gradual process, that is to say, to eat less, not to eat at all. There are also some pickled foods and smoked foods that often induce colorectal cancer. Differentiating colorectal cancer from hemorrhoids: The early symptoms of colorectal cancer have many similarities with hemorrhoids, so it is important to differentiate colorectal cancer from hemorrhoids in early stage. The common point between colon cancer and hemorrhoid is blood in stool, but there are three main differences between them: firstly, the number of stools of colon cancer patients increases or is irregular, while hemorrhoid patients usually do not increase the number of stools; secondly, the amount of bleeding and bleeding condition are different, in the case of bleeding from colon cancer, blood and stool are often mixed together and bleeding is more, while bleeding from hemorrhoid is usually before or after stool and bleeding is less; thirdly, when colon cancer develops to a certain extent, abdominal pain will usually occur. Third, colorectal cancer will generally cause abdominal pain to a certain extent, while hemorrhoids will not. The human colon is generally 1.5 meters long, and the symptoms will be different depending on the location of the lesion. Rectal cancer, on the other hand, will have a distinct sensation of anal downward movement. If early symptoms are found, such as blood in stool, increased frequency of stool, abnormal shape of stool, abdominal pain, etc., you must go to hospital for examination in time to achieve early diagnosis and early treatment, which is the key to ensure effective treatment of colorectal cancer.