The symptoms of pediatric gastric ulcer mainly include abdominal pain, which can have a certain time pattern, and gastric ulcer usually appears half an hour after a meal. The other is abdominal distention with early fullness and nausea. Vomiting, black stools or blood in the stool can also occur. If there is a lot of bleeding, the child can have problems such as vomiting blood and anemia. The main treatment is acid suppression therapy, and it is necessary to clarify whether the child has H. pylori infection. If H. pylori infection is present, anti-H. pylori treatment is needed, which can be done with a proton pump inhibitor such as Loxac, plus two antibiotics, amoxicillin and clarithromycin, for a total of 2 weeks. After completion of anti-H. pylori treatment, acid suppression therapy is continued with Loxacol for a total of 6-8 weeks.