In our gastrointestinal tract there is a large variety of microorganisms, which are also known as intestinal flora, and intestinal flora can be divided into three kinds of beneficial bacteria, pathogenic bacteria and neutral bacteria. Under normal circumstances, these three types of bacteria are combined in a certain proportion, and the bacteria are mutually restrained and interdependent, forming an ecological balance in terms of quality and quantity. If the internal and external environment of human body changes, especially after long-term application of broad-spectrum antibiotics, the sensitive intestinal bacteria are inhibited, and the uninhibited bacteria multiply, thus causing dysbiosis. So what are the symptoms of intestinal flora dysbiosis? What should we do to prevent it? What are the symptoms of intestinal dysbiosis? The first is digestive tract symptoms Common symptoms are bad breath, loss of appetite, abdominal pain, bloating, belching, burping, and in severe cases, abnormal bowel movements including: straining to defecate, smelly, dark, stubborn diarrhea or constipation and so on. This is because when the number of beneficial bacteria in the intestinal tract decreases, a large number of spoilage bacteria will multiply in the digestive tract, and these spoilage bacteria will produce gas, leading to bad breath, bloating and abdominal pain, and when the probiotic bacteria are reduced to the extent that they cannot digest a certain amount of lactose, causing an excess of lactose and water cannot be absorbed, it will lead to stubborn diarrhea, and when there are too many harmful bacteria, the accumulation of a large amount of waste produced will also affect the normal metabolic function of the intestinal tract When there are too many harmful bacteria, the accumulation of large amount of waste produced will also affect the normal metabolic function of the intestine, leading to constipation. Secondly, the systemic symptoms are mainly the expression of decreased resistance such as frequent colds, discomfort, easy to get sick, poor sleep quality such as anxiety, depression, poor skin condition, poor tone and so on. This is because the intestinal flora is related to 70% of the body’s immunity, when the intestinal flora is imbalanced, the body will experience a decline in immunity and autoimmune system diseases. In addition, too much harmful bacteria in the intestinal tract can also affect our brain function and mood, resulting in anxiety and depression. Why is the intestinal flora imbalanced? 1, disease factors: some diseases such as gastric acid deficiency, chronic nephritis, liver cirrhosis, trauma, infection, tumors and other diseases, especially the use of hormones, radiation therapy and chemotherapy will destroy the balance of intestinal flora, causing intestinal flora dysbiosis. 2, dietary factors: mainly the diet structure is not reasonable, the lack of prebiotics in the diet, prebiotics is indigestible dietary fiber components, it is the food of intestinal bacteria, mainly with fruits, vegetables and whole grains in the food, the lack of these components in the diet will cause intestinal flora dysbiosis. In addition refined oil, refined white rice, white sugar, processed foods, fast food, a variety of food additives, preservatives, pesticide residues and fertilizer-promoted vegetables and fruits, meat containing antibiotics or hormones are detrimental to the human intestinal tract. 3, abuse of antibiotics: antibiotics are important drugs used to treat infections and diseases caused by bacteria, which can kill bacteria or stop the reproduction of bacteria, but one of their shortcomings is the indiscriminate killing of all bacteria in the intestinal tract, including probiotics and pathogenic bacteria. If used for a long time, it will definitely lead to intestinal flora disorders. How to prevent intestinal flora imbalance? 1, adjust the diet, increase the intake of dietary fiber. Dietary fiber is prebiotic, is the food of bacteria, common food containing more dietary fiber are: sweet potato, bamboo shoots, all kinds of green leafy vegetables, eggplant, mushrooms, all kinds of coarse grains such as wheat, corn, etc., beans such as young soybeans, young fava beans, young peas, etc., kelp, lotus root, yam, carrots, tomatoes, cucumbers, winter melon and other melons, as well as all kinds of nuts and fruits. Increase dietary fiber can significantly improve the dysbiosis. 2, the reasonable use of antibiotics. For the old and frail, chronic wasting disease, the use of antibiotics or hormones, strict control of the indications, the best drug sensitivity test, choose the most sensitive antibiotics. For the elderly and frail after illness, use antibiotics along with lactobacillus or bifidobacteria to prevent intestinal flora imbalance. Prior to major surgery, attention should be paid with systemic supportive therapy, such as improving nutrition, blood transfusion, intramuscular injection of gammaglobulin, taking vitamins, etc. Avoid abuse or long-term use, available can be used when not used, available narrow-spectrum antibiotics are not used broad-spectrum antibiotics. 3.Supplement probiotics. Direct supplementation of probiotics can inhibit the multiplication of harmful bacteria in the intestine, reduce toxins and promote intestinal peristalsis, thus improving intestinal function and bowel movement. Mainly to provide bifidobacteria, lactobacillus and other beneficial bacteria content, to restore the balance of intestinal flora.