With summer approaching, the weather is hot, and many children crave cold drinks, the incidence of gastrointestinal diseases in children is gradually increasing, and abdominal pain is one of the common symptoms of gastrointestinal diseases. Our pediatric gastrointestinal disease clinic treats several thousand cases of children with abdominal pain every year and has accumulated rich clinical experience. If the cause of abdominal pain is not identified, it may have a great impact on the child’s health. Abdominal pain is divided into medical abdominal pain and surgical abdominal pain, the vast majority of which is medical abdominal pain, which is generally not very urgent; while a few belong to surgical emergency abdominal disease, requiring urgent treatment. Abdominal pain can be broadly divided into three forms: colic, dull pain and radiating pain: those caused by muscle spasm or obstruction, such as spasm or obstruction of intestinal ducts, bile ducts and ureters, mostly manifest as paroxysmal colic; those caused by inflammatory swelling of organs in the abdominal cavity when the peritoneum is involved, such as inflammation of liver, kidney and peritoneum, mostly manifest as persistent dull pain; radiating pain is manifested as visceral pain reflected along the corresponding spinal nerves through the vegetative nerves to For example, the pain of hepatobiliary disease can sometimes be radiated to the right shoulder. What abdominal pains may be surgical emergencies that require immediate hospital consultation? Wang Yushui said that parents must be alert to children with paroxysmal abdominal pain with limited abdominal pressure and muscle tension of fixed location, scope and degree; children with abdominal cramps accompanied by abdominal distension, vomiting and fever; children with persistent and progressively increasing abdominal pain and whole abdominal pressure, and must not delay and send their children to the hospital immediately. The most common symptoms of chronic gastritis and gastric ulcer in children are: repeated pain in the upper abdomen or around the umbilicus, often accompanied by vomiting, fullness, acid reflux, nausea, loss of appetite, affecting activities and sleep in severe cases; discomfort after meals, not eating much but feeling overfull, often caused by cold, hard, spicy or other stimulating food or aggravate the symptoms; the above symptoms are not easily relieved by antacids and antispasmodics. The above symptoms are not easily relieved by antacids and antispasmodics. In recent years, the Department of Pediatrics of Nankai Hospital has seen dozens of cases of gastroduodenal ulcer and hemorrhage in children with abdominal pain through gastroscopy. There are many causes of pediatric gastritis, but more than 80% are caused by H. pylori infection of the stomach. H. pylori is the main pathogenic factor of chronic gastritis, and is closely related to the development of peptic ulcer, but also with gastric cancer and gastric tumors. The Department of Pediatrics of Nankai Hospital found that the positive rate of H. pylori can reach 30% by testing children with abdominal pain symptoms through 13C infrared isotope spectrometry analyzer imported from Germany. The World Health Organization has clearly pointed out that H. pylori is the first carcinogenic factor. H. pylori is mostly infected at an early age and once infected will carry the bacteria for decades with very low natural eradication rate. Secondly, pediatric chronic gastritis is also closely related to gastrointestinal dysfunction and nutritional factors. The increase of vitamins A and C in food is linked to the reduction of chronic gastritis, while the insufficient intake of vitamins C, E, iron and calcium in paranoid children is another factor that causes the disease. There is no specific treatment for pediatric chronic gastritis in Western medicine alone. The main treatment for pediatric chronic gastritis should be a combination of Chinese and Western medicine plus dietary therapy. The principle of dietary therapy is to maintain the nutritional intake of the child in order to ensure normal growth and development and prevent nutritional disorders. According to the child’s age and habits, arrange easily digestible food, small and frequent meals, and avoid stimulating food and drinks. At present, the drug treatment of chronic gastritis is first of all the eradication of H. pylori infection, and must be treated in a regular professional hospital.