Don’t think that it is good that you are now taking a car for transportation, going up and downstairs with an elevator, sitting in the office writing plans and checking information on the Internet, or that it is good that you have fish and meat at meals and are not tired of fine food …… In recent years, an obvious trend in the incidence of bowel cancer is that people who exercise less, have good living conditions and often sit still have become a high-risk group. In addition to heredity, bowel cancer mainly comes from diet (high fat, low fiber and low calcium) and lack of exercise, etc. Observation of bowel movement should start from three aspects 【Fecal sensation】Feces is the residue left by digestion and absorption of food, which enters the rectum through intestinal peristalsis. The pressure receptors of the rectum cause the desire to defecate, which is manifested as lower abdominal fullness and anal swelling. This feeling disappears after the feces is expelled from the body. Frequency of defecation] The number of bowel movements per day is 1 to 2 for normal adults, and 1 every other day for a few people. Defecation less than 2 times a week should be considered as constipation. Compared with the original bowel habits, you should be careful if you suddenly have too many bowel movements or longer intervals recently. Nature of stool] Mainly refers to the dryness and thinness of the stool. It is usually formed soft stool, but occasionally dry or thin stool is also normal, often related to dietary activities and mental factors. 3 major signals of bowel cancer 1. Change of bowel habit Generally, people need to defecate 1-2 times a day, and it is more regular, either in the morning or at night before going to bed. If there is a change in the original pattern, especially the difficulty in defecation, from regular 1-2 times a day to 4-5 times a day or 2-3 days to defecate once, it is necessary to pay attention to it. Blood in stool is the most common symptom of colorectal cancer, especially rectal cancer. The main reason is that the tumor grows and breaks and bleeds, but generally the amount of blood in stool is not much, some are bright red, some are dark red like sauce. 3.Anemia and wasting Because of the chronic bleeding of tumor and consumption of nutrients in the body, people will have symptoms of anemia, wasting, weakness and even fever after a long time, such symptoms are most often found in colon cancer. Some early symptoms of colorectal cancer can be detected by self-testing colorectal cancer, which can improve the cure rate of cancer if medical treatment is sought as early as possible. Fecal occult blood test can be used as a screening test for early diagnosis of colorectal cancer, and combined with anal finger examination and fiberoptic colonoscopy, colorectal cancer can often be detected early. To let people know the early symptoms of colorectal cancer, such as blood in stool, intermittent blood in stool, change of stool habit, frequent stool, appearance of abdominal vague pain, intestinal dysfunction and other manifestations, or the appearance of unexplained anemia, any similar situation should be promptly seen by a specialist. High animal fats induce bowel cancer, it is understood that bowel cancer usually refers to colorectal cancer, because the probability of small intestine cancer is extremely low. The colon cancer can be divided into two parts: colon cancer and rectal cancer. Physicians said that from the cases of colorectal cancer, there is a correlation between obesity and the development of colorectal cancer, therefore, the cause of colorectal cancer has a great relationship with people’s dietary habits. With the improvement of living standards, Chinese people who originally ate more vegetables and grains now start to eat a lot of meat foods and dairy products. High calorie, excessive intake of animal fat and cholesterol, etc., and obvious lack of fiber and vitamins, etc., have increased the incidence of colorectal cancer.