(Disclaimer: This article is only for scientific purposes, in order to protect the patient’s privacy, the following content of the relevant information has been processed) Abstract: 24-year-old young man is usually healthy, before coming to the clinic and friends dinner, drink more ice-cold drinks, beer and spicy food, 2 hours after the occurrence of nausea, vomiting, abdominal distension, abdominal pain, diarrhea, initially paste-like stools, and then turned to yellow dilute water stools, so he came to the hospital for medical treatment. After a comprehensive examination, he was diagnosed as infectious gastroenteritis, and was given treatment to protect the gastrointestinal mucosa, antimicrobial antidiarrheal and rehydration, and was hospitalized for 5 days, with his condition recovered, his abdominal discomfort completely relieved, and all the examination indexes basically returned to normal. Basic information] Male, 24 years old [Disease type] Infectious gastroenteritis [Hospital] No. 988 Hospital of the PLA Joint Command and Security Forces [Time of consultation] December 2021 [Treatment plan] Intravenous injection (glucose sodium chloride injection, vitamin C injection, vitamin B6 injection, potassium chloride injection, compound potassium hydrogen phosphate injection) + oral medication (Rehabilitation New Liquid, Norfloxacin capsules) [Compound Flavoxate tablets], and oral medication (Rehabilitation New Liquid, Norfloxacin capsules, Compound Flavoxate tablets). (Compound flavonoid tablets) 【Treatment cycle】 hospitalization for 5 days, discomfort follow-up 【Treatment effect】 abdominal discomfort symptoms completely relieved, the indicators of the examination basically returned to normal I. Initial interview Today, the fever clinic came to see a nausea, vomiting, abdominal pain, diarrhea and fever patients, there has been a mild dehydration, the patient yesterday evening with friends to get together to eat something more stimulating to the gastrointestinal tract, such as ice-cold beer and beverages, Kebabs, spicy hot pot, etc., 2 hours after the beginning of nausea, vomiting, abdominal distension, vomit initial gastric contents, and then yellow mucus, followed by abdominal pain, diarrhea, from pasty stools to yellow-green dilute watery stools, accompanied by mucus, no pus and blood, self-administration of oral montelukast 2 packets, no significant improvement, the morning wake up to measure the temperature of 38.6 ° C, accompanied by generalized chills, fatigue. Examination of the patient’s mental clarity, poor spirit, fatigue, mild dehydration appearance, abdominal depression, abdominal muscles slightly tense, positive pressure pain, no rebound pain. Blood routine showed 17.9×10^9/L leukocytes, 90.6% neutrophils, elevated red and white blood cells and positive fecal occult blood in the fecal routine. He was diagnosed with infectious gastroenteritis and was admitted to the hospital. The patient was admitted to the hospital with blood pressure of 90/58 mmHg and pulse rate of 102 beats/min. Immediately, he was given rehydration, gastrointestinal mucosa protection and antidiarrheal treatment, and was given glucose sodium chloride injection, vitamin C injection, vitamin B6 injection, potassium chloride injection, potassium phosphate injection to maintain the water-electrolyte balance. Rehabilitation new liquid was given orally to repair the damaged gastrointestinal mucosa, together with oral norfloxacin capsule, compound Huanglianxin tablets, both drugs have antibacterial and antidiarrheal effect, which can control intestinal inflammation on the basis of antidiarrheal effect. The patient’s temperature dropped and diarrhea decreased in the evening of the same day, but there was still intermittent abdominal pain and discomfort, and no abnormality was found in the repeat examination of abdominal plain film and appendix ultrasound, so appendicitis and abdominal abscess were excluded, and the patient continued the treatment, and the discomfort was significantly reduced and the condition improved after 3 days. On the 3rd day after the patient was admitted to the hospital, her temperature returned to normal, she had no nausea and vomiting, only abdominal discomfort, abdominal distension after eating, aversion to greasy food, and little food, and on the 5th day of the course of the disease, her abdominal discomfort was completely relieved, and she had no nausea, vomiting, abdominal distension and other uncomfortable symptoms when she ate light liquid food and semi-fluid food, and her feces turned into yellow molded soft stools, and she had no abdominal pain. The blood and fecal tests were basically normal, liver and kidney functions and electrolytes were normal, and there was no abnormality in blood pressure, pulse and body temperature. The patient’s condition recovered and he was discharged after 5 days of hospitalization without medication, and he was asked to follow up for any discomfort. Fourth, precautions We are glad that the patient’s clinical symptoms are relieved, blood and fecal routines are back to normal, and clinical cure is considered, but the gastrointestinal mucosa after this blow, the late stage still needs to strengthen the maintenance and repair, to avoid re-injury, and the following points need to be noted: 1, the diet should be regular, not overeating, nor starvation and satiation, and eat in a timely manner and in accordance with the amount of food; 2, the structure of the three meals is reasonable, and to avoid spicy and oily food, Avoid drinking alcohol, strong tea, strong coffee, carbonated drinks, especially ice-cold drinks, and eat fresh vegetables and fruits in addition to rice, noodles and other staple foods; 3. Smoking, staying up late, emotional fluctuations, and taking certain medications are not good for the stomach and intestines, and should be avoided as much as possible in daily life. V. Personal perception Gastroenteritis is relatively common, mostly associated with improper diet, infectious gastroenteritis is mostly due to eating corrupt and spoiled food or due to bacterial dysbiosis appear fever. The patient in this case belongs to a young and strong young man with better physical basics and faster recovery, but for children and frail and sickly old people, it is easy to cause complications such as dehydration, electrolyte disorders, toxic shock and so on. Therefore, the daily diet must be regular and moderate, and not greedy for the moment, causing unnecessary harm to the body.