Acute gastroenteritis is generally caused by diet or abdominal cold and other factors leading to acute inflammation of the gastrointestinal mucosa, mostly occurs in the summer, the causes of acute gastroenteritis include the following: 1, dietary factors: some patients mistakenly eat moldy food or eat too cold food, a lot of alcohol, overeating caused by gastrointestinal discomfort, gastrointestinal mucosa local edema symptoms, so that patients appear bloating, diarrhea, nausea, vomiting and other uncomfortable symptoms. The patient will have symptoms such as bloating, diarrhea, nausea, vomiting and other discomfort, and in severe cases, dehydration and shock; 2, abdominal cold: cold can easily cause many gastrointestinal discomfort symptoms, for patients with prolonged gastrointestinal discomfort, abdominal cold can easily induce epigastric pain, diarrhea, acid reflux and other adverse reactions, thus causing acute gastroenteritis; 3, pathogenic infection: acute gastroenteritis is generally due to bacterial, parasitic or The result is a viral infection. The body is prone to some pathogens entering the body when eating unclean food, so that bacteria or viruses spread in the body, thus causing acute gastroenteritis. It is recommended to avoid unclean food and expired food in daily life to prevent bacterial infection.