Autumn is an epidemic season for diarrhea. Due to the higher temperature, coupled with more autumn rain and higher humidity, food is prone to decay and spoilage after placement, making pathogenic bacteria breeding active. During the travel season, people go out on vacation, dinners and weddings will increase dramatically, and if they do not pay attention to dietary hygiene, eating these foods will often cause acute gastroenteritis, manifested as acute abdominal pain, diarrhea, loss of appetite and nausea and vomiting. Therefore, the occurrence, treatment and prevention of diarrhea should be taken into account during this season, whether traveling or gathering at home or gathering for dinner. Based on the differences in age, the etiology and management options for the occurrence of fall diarrhea in young children and adults are also different, so great attention should be paid to reducing the occurrence of fall diarrhea in daily life. Fall diarrhea is more common in young children, with more children aged 2-3 years old suffering from the disease, mainly because of the cool weather in autumn, the digestive tract of infants cannot easily adapt to the hot climate and reduce the secretion of digestive enzymes, which further reduces the digestive function, and the drop in temperature facilitates the survival of viruses in the intestinal cavity. After rotavirus infection, these viruses are concentrated in the small intestine, causing damage to the intestinal mucosa, causing a large amount of water in the intestinal mucosa epithelium, water cannot be absorbed, and over time, diarrhea will occur, with thin watery mucus-like stools, like egg drop soup, and in severe cases, pus and blood stools, accompanied by dehydration, dry mouth, weight loss, and reduced water under the skin. In addition, a small percentage of diarrhea in young children is caused by intestinal bacterial infections, such as Bacillus dysenteriae, Escherichia coli, and Salmonella. The clinical diagnosis of autumn diarrhea in children is made mainly by fecal virology, culture of stool, and determination of specific markers of the virus. When rotavirus infection is clearly established, the main treatment is by antiviral therapy, hydration and electrolyte supplementation, correction of water and electrolyte disorders, adjustment of microecological stability in the intestinal lumen with intestinal microecological preparations, and intestinal mucosal protectors. In addition, symptomatic treatment is targeted to control fever and abdominal pain. Do not treat with antibiotics if there is no clear evidence of the presence of a co-infection with bacteria. If an intestinal bacterial infection is detected, treatment with effective and sensitive antibiotics is recommended. In ordinary life, one should pay attention to hygiene, disinfect dishes frequently, keep the room airy, always wash food well, and take care not to artificially ingest harmful germs through the mouth when feeding, etc. Autumn diarrhea in adults is mostly closely related to unclean diet, as the weather is still hot, bacteria can easily breed, food can easily deteriorate, and bacteria can enter the intestinal cavity through food causing diarrhea to occur. The main bacteria that cause diarrhea are Bacillus dysenteriae, Escherichia coli, Salmonella, Staphylococcus aureus and Streptococcus. The bacteria enter the intestinal tract and secrete a large amount of bacterial toxins, causing the intestinal mucosa to secrete large amounts of intestinal fluid, often resulting in fever, diarrhea, mucopurulent stools, abdominal pain, bloating and poor appetite. If there is an increase in the number of diarrhea, dehydration may also occur. If these patients have diarrhea, it is recommended to go to the hospital for routine tests, such as stool bacterial culture, to diagnose the pathogenic bacteria and determine which one is causing the diarrhea. If conditions permit, it is advisable to do a drug sensitivity test to screen for sensitive antibiotics. In addition, routine blood tests are done to see if the white blood cells are elevated; blood tests are drawn to check for electrolyte balance disorders and liver and kidney function. The clinical treatment of diarrhea in adults is mainly to replenish water and electrolytes, correct dehydration and electrolyte disorders, and use sensitive antibiotics reasonably to clear intestinal bacterial infections. In addition, symptomatic treatment is needed to control the occurrence of fever and abdominal pain, and some microecological preparations can be used to regulate the intestinal microecological balance. In the occurrence of diarrhea, it must be identified in life with other diseases that commonly cause diarrhea, such as: 1. Ulcerative colitis, which often presents with an increased number of stools, mucopurulent stools, abdominal pain, accompanied by fever, etc. It is recommended that those with recurrent diarrhea should go to the hospital for examination and clear diagnosis. 2, food allergies, some people are allergic to some foods that cause diarrhea, such as eating peanuts, fish and shrimp, seafood, almonds nuts, etc. may diarrhea. 3, gastrointestinal nerve function abnormalities, such as irritable bowel syndrome. There are often abdominal pain, abdominal distension, abnormal bowel habits and stool traits, mucus stools, persistent or intermittent episodes, and the lack of morphological and biochemical abnormal changes can explain the syndrome. 4, intestinal tumors. For the prevention of autumn diarrhea occurs, the main measures are: 1, the consumption of animal food or seafood, before consumption must be cooked, cooked thoroughly. Sea fish, sea shrimp, sea crab, sea jelly and other seafood often have Vibrio parahaemolyticus (also known as saltophilus), people eat the above seafood undercooked, can cause Vibrio parahaemolyticus infection. And pigs, cattle, sheep, chickens, ducks and other animal offal, muscle, eggs and dairy products are often contaminated with Salmonella, so people in the purchase of a variety of sauce products or cooked meat products, before eating should be reheated to prevent Salmonella infection. 2, do not eat rotten, spoiled food. Leftover rice, porridge, milk, dairy products, fish, meat, eggs, etc. are susceptible to staphylococcal enterotoxin contamination, if ingested by people can cause staphylococcal food poisoning, therefore, leftover rice, leftovers, etc. must be fully heated before consumption, food taken out of the refrigerator should also be heated before consumption. 3. Cutlery for processing raw food and cooked food should be separated to avoid cross-contamination. In addition, do not buy food or eat at unclean stalls and develop good hygiene and eating habits. In the treatment and care of patients with diarrhea, attention should be paid to the isolation of patients, for example, patients with dysentery should be isolated until one week after the symptoms disappear, tableware used by patients should be stored separately from those used by other family members and can be boiled in boiling water after use for the purpose of disinfection, and bedding used by patients can be placed outdoors in the sun for half an hour, which can have a good disinfection effect. It can be seen that diarrhea is not terrible. However, not only do we need to pay attention to personal hygiene and food hygiene to keep diarrhea out, but more importantly, we need to strengthen our exercise to enhance our body’s resistance and prevent it from happening in the first place!