Acute gastroenteritis is caused by bacteria Acute enteritis is the most common intestinal disease. The main symptoms are abdominal pain, diarrhea, watery stools, less than a few times a day, more than a dozen, or even more, on human health. Salmonella spp. are the main pathogens of acute gastroenteritis, including Salmonella typhimurium, Salmonella enteritidis, Salmonella cholerae, Salmonella chicken, Salmonella duck are more common. These bacteria are widely present in the intestinal tract of various animals, such as pigs, cattle, sheep, dogs, chickens, ducks and rodents. When animals are sick, these genera can invade their blood stream, internal organs and muscle tissue, and eggs are often contaminated by these bacteria. These bacteria through contact with the pathogenic bacteria of the utensils, hands, etc. and then contact cooked food and cold dishes, etc.; will be on the top of a large number of multiply, and produce a large number of endotoxin, people eat this food, due to the role of bacteria and endotoxin, stimulate the gastrointestinal mucosa, causing congestion of the mucosa, edema, increased secretion of intestinal fluid, resulting in a violent gastrointestinal reaction. Bacteria and toxins into the blood, but also can cause bacteremia and toxemia. In addition, Vibrio parahaemolyticus (saltophilus) is also a more common pathogenic bacteria, it is widely present in seafood, such as fish, crabs, jellyfish, and salt-cured meat, eggs and pickles, about 10 hours after eating the onset, mainly also manifested as nausea, vomiting, abdominal pain, diarrhea. The pathogenic bacteria that cause acute gastroenteritis are also Aspergillus, pathogenic E. coli, etc. Fungi can also cause acute gastroenteritis, but it is relatively rare. Staphylococcus aureus, if contaminated with dairy products, eggs, and meat, can multiply in the right environment and produce heat-resistant enterotoxins, causing morbidity. The etiology and pathogenesis of acute gastritis I. Infectious factors Eating food contaminated with bacteria or their toxins. Common pathogenic bacteria are Salmonella spp. Vibrio parahaemolyticus (salt-loving bacteria) Helicobacter pylori, as well as certain influenza viruses and enteroviruses. Toxins to Staphylococcus aureus toxin is the most common. Salmonella spp. often grow in meat, and eggs. Vibrio parahaemolyticus is mainly in crabs, fish, snails, jellyfish and other seafood salty dishes, hot days long-set meals, milk, meat suitable for staphylococcal reproduction and enterotoxin production. Second, physical and chemical factors physical factors such as eating too hot, too cold rough food, X-ray exposure, etc. Chemical factors such as spirits coffee, strong tea, spices and certain drugs can damage the gastric mucosa, causing inflammatory changes. The other overeating, excessive fatigue, cold, etc., so that the body’s resistance to decline or damage to the gastric mucosal barrier, easy to be attacked by the above factors and the onset. The first thing you need to do is to stop all food and drugs that stimulate your stomach and fast for a short period of time as appropriate, or enter a liquid diet. In addition to acute corrosive gastritis, in addition to fasting, appropriate ban gastric lavage, ban vomiting, immediately drinking egg whites, milk, edible vegetable oil, etc.. Then remove the internal causes, that is, active treatment of predisposing diseases, such as acute infectious gastritis should pay attention to the treatment of systemic diseases, control of infection, bed rest, etc. 2, antibacterial therapy: acute simple gastritis with serious bacterial infection, especially with diarrhea available antibacterial therapy. Commonly used drugs: Flavopiridol 0. 3g orally, 3 times a day; Flupirtine 0.1 to 0.2g orally, 3 times a day; Gentamicin 80,000u, intramuscular injection, twice a day. Acute infectious gastritis can be controlled by selecting a sensitive antimicrobial agent according to the systemic infection. Acute septic gastritis should be treated with a large number of effective antimicrobials. Acute corrosive gastritis can also choose antimicrobial agents to control the infection. 3.Correct water and electrolyte disorders: For patients with severe vomiting and diarrhea and dehydration, patients should be encouraged to drink more water or intravenous rehydration, etc. 4, hemostatic treatment: acute gastritis resulting in gastrointestinal bleeding is a critical condition, can be given cold saline gastric lavage, or cold saline 150ml plus norepinephrine 1 ~ 8mg gastric lavage, for stable blood pressure, shock correction. To protect the gastric mucosa, H2 receptor blocking agents such as metformin 2 tepmagnesium can be used 4 times daily. Rapid hemostasis is achieved by direct gastroscopy with electrocoagulation, laser, condensation, and spraying of drugs. For those who bleed heavily, transfuse the appropriate amount of blood. 5, symptomatic treatment: give antispasmodics for abdominal pain. Such as belladonna 8nw, or probenecid 15n miles, 3 times a day. For nausea and vomiting, use 5-10mg of gastrodia, or 10mg of moringa, 3 times a day.