If a 12-year-old child has stomach pain, it is mainly considered to be related to abdominal cold, poor living conditions and gastroenteritis. If the symptoms are only occasional, it can be observed first. If the symptoms continue to appear or worsen, the patient needs to go to the hospital for gastroscopy, fecal routine and other related examinations to clarify the cause and then carry out targeted treatment. 1. abdominal cold: the weather suddenly becomes cold, or the child eats cold food, resulting in gastrointestinal dysfunction and spasm, which leads to stomach pain. At this time, you can put a warm water bag in the stomach of children to keep warm, and at the same time you can drink some warm water or water boiled with brown sugar and ginger to relieve the symptoms of stomach discomfort; 2, poor living conditions: some children’s stomach pain may be caused by poor living conditions. Factors such as excessive mental stress, lack of sleep and irregular diet can also lead to stomach pain symptoms in 12-year-old children. In this case, it is necessary to adjust children’s living habits, go to bed early and wake up early every day to ensure sufficient sleep, then ensure regular diet, to make three meals a day regularly, and pay attention to diet, try to eat light and easy to digest food, such as shrimp porridge, noodles in clear soup, etc., especially not overeating, otherwise it will aggravate the stomach damage. In addition to this, under the guidance of a professional doctor, you can take oral medications that regulate the intestinal tract, help digestion, and protect the mucosa of the gastrointestinal tract; 3, gastroenteritis: in this case, it may have something to do with Helicobacter pylori infection, you can promptly take children to the hospital to check the carbon 13 breath test. If it presents positive, attention should be paid to the child’s meal sharing, the need to choose the combination of two antibiotics, and also oral gastric mucosal protective agents. In addition, for children with acute and chronic gastritis or gastric ulcer, gastroscopy or upper gastrointestinal tract imaging can be performed for diagnosis and treatment in a timely manner.