Whether or not H. pylori infection affects the growth of children depends on the specific condition and the effect of treatment. If the condition is mild or the treatment effect is good, it may not affect the growth; if the condition is severe and the treatment is not timely and effective, it may affect the growth. If children infected with H. pylori do not have obvious gastrointestinal damage, the symptoms are mild, usually without special treatment, as children grow up, the immune function and digestive function is perfect, can be improved on their own; if the symptoms are relatively more serious, but actively cooperate with the treatment, the treatment effect is good, usually the prognosis is also better, generally will not affect the growth of children. If children are infected with Helicobacter pylori and are not treated in a timely and effective manner, chronic atrophic gastritis, peptic ulcer and other diseases may be induced, resulting in poor appetite, bloating, abdominal pain and other discomforts, and insufficient nutrient intake and absorption, which may affect children’s growth. Children infected with Helicobacter pylori or having any discomfort should go to the hospital in time and be treated under the guidance of a doctor.