The bacterium is a kind of S-shaped microaerobic gram-negative bacilli, which can settle on the human gastric mucosa and continue to exist. After several years, it can cause chronic active gastritis and twelve-digital gastritis in susceptible individuals. Intestine or stomach ulcer or even stomach cancer. Childhood is another period of rapid increase in infections.
It is clinically found that repeated abdominal pain, anorexia and weight loss are the three main symptoms of Helicobacter pylori in children. In the past, anorexia to children was generally considered to be caused by indigestion and food accumulation, but in fact it is not the case.