In China, due to the high pressure of life, irregular diet and abuse of antibiotics, more and more people develop gastrointestinal diseases every year, especially the increase in the incidence of malignant tumors and the younger generation. Intestinal diseases have become a major problem in people’s lives, and the freezing of three feet is not a day’s cold, intestinal health problems may initially be caused by some minor problems similar to diarrhea. Experts remind the public to pay attention to intestinal health, regular work and rest, proper exercise, drink more water and fiber food, maintain a good intestinal function, eat well. Symptoms of intestinal diseases: 1, loss of appetite: the cause may be due to digestion, absorption or motor dysfunction of the intestinal tract. However, there are many reasons for the loss of appetite. In addition to gastrointestinal diseases, it can also be caused by mental factors, drug reactions or other organ diseases. 2. Nausea and vomiting: When high intestinal obstruction or abnormal intestinal motor function occurs, vomiting is often present. However, nausea and vomiting symptoms can also occur in many different diseases. 3, abdominal pain: different subsites suggest different lesions, pain under the saber is dominated by lesions of the gastroduodenum, pain in the middle and lower abdomen, intestinal lesions are more likely. Acute abdominal pain can occur in intestinal inflammation, intestinal obstruction, intestinal perforation, intestinal loop ischemia, etc. Intestinal tumors or chronic inflammatory lesions often have persistent abdominal pain. 4, diarrhea: acute diarrhea is mostly the result of intestinal bacterial infection, bacterial toxins or other harmful substances damage to the intestinal mucosa. Chronic diarrhea can be seen in various causes of absorption dysfunction, chronic inflammation, intestinal tract motility and other diseases. Chronic diarrhea caused by small intestine disease is often accompanied by malabsorption, and diarrhea caused by colon disease is mostly seen in chronic inflammation or colonic hypermobility. 5, constipation: intestinal movement is weakened, the intestinal wall muscle tension is reduced, or the colon, rectum due to inflammation, tumors and narrowing of the intestinal cavity, can cause constipation. Constipation can also be caused by drugs, changes in lifestyle, too little and too fine diet, too little fiber content in food. Therefore, constipation is not necessarily a manifestation of organic lesions in the intestine. 6, blood in the stool, black stool: may be caused by the most simple hemorrhoids, may also be caused by the most terrible intestinal malignant tumors, most of them suggest organic lesions of the intestine, need special attention. 7, other: if bloating, change in stool habits, change in the shape of the stool and other discomfort are suggestive of gastrointestinal disorders may require timely hospital consultation, through gastroscopy, colonoscopy or CT to further clarify the cause. How to prevent intestinal diseases: 1, regular diet, normal rest. Do not swallow when eating, chew slowly, because chewing can increase saliva secretion, can neutralize the acidity of gastric juice. Do not eat too much, so as not to dilate the gastric sinus and increase the secretion of gastrin. Generally, you should not eat before bedtime to avoid increased gastric acid secretion at night. 2, appropriate exercise, strengthen the body. At least 20 minutes of aerobic exercise every day can keep the stomach and intestines in good peristalsis and vitality, but the meal money half an hour, an hour after the meal to avoid strenuous exercise. The exercise needed for gastrointestinal problems need not be too complicated, jogging, walking, easy stretching exercises, etc., are good ways to exercise. 3, low salt and low fat, healthy diet. Limit the amount of salt intake in your diet and take a low-salt diet as much as possible. Advocate that the staple food of peptic ulcer patients should be mainly pasta, especially the staple food of duodenal ulcer patients should pay more attention, and try not to use rice as the main food. Try to drink less coffee and less tea to avoid increasing the secretion of stomach acid. Try not to eat or eat less spicy food to avoid damage to the gastric mucosa and to prevent increased secretion of gastric acid and pepsin. Try not to eat overly acidic food to prevent damage to the gastric mucosa. Increase the proportion of crude fiber diet in the diet to shorten the time of gastric dilatation and reduce the secretion of gastric acid to increase the content of essential fatty acids such as linoleic acid in the diet. Vegetable oil is the main source of essential fatty acids for humans. 4. Pay attention to hygiene and regular medical checkups. The main measures to prevent acute summer gastroenteritis is to pay attention to dietary hygiene, hand washing, disinfection of household items is also very important. Illness is always inevitable in a person’s life. The most important thing for maintaining good health is nine words: early prevention, early diagnosis and early treatment. Even for malignant tumors, which are a cause for concern, early detection and timely treatment can achieve the goal of eradication.