H. pylori infection in children may be asymptomatic or may lead to gastritis and other digestive disorders, which can lead to appropriate symptoms of illness, such as stomach pain and nausea. H. pylori generally survives in the stomach and is pathogenic. Children infected with H. pylori usually do not have obvious symptoms, but if it causes gastritis and other digestive disorders, they may experience corresponding symptoms such as stomach pain, nausea, bloating, loss of appetite, burping, and so on. The main ways for children to get infected with Helicobacter pylori are fecal-oral transmission and oral-oral transmission, etc. Usually, they should develop the habit of washing their hands diligently, and when they eat, they should have special utensils and their diets should be separated from those of the adults, so as to minimize the chances of infection. Children should be helped to develop good personal hygiene and dietary habits, and if they become unwell, they should consult a doctor in time to avoid delays.