患儿资料病例纳入标准：①、因消化疾病就诊但无其他严重疾病及并发症的儿童

<br>Inclusion criteria for children’s data : <br>① Children <br>who have seen a doctor for digestive diseases but without other serious diseases and complications; ② Children between the ages of 4 to 14; <br>③ Children with Hp positive [7]: C13-UBT determination, Gastric mucosal biopsy rapid urinary enzyme test is positive; <br>④Clinical manifestations are upper abdominal pain and discomfort around the umbilical cord, and children with abdominal tenderness in the upper abdomen or periumbilical area on <br>examination ; ⑤Children diagnosed as chronic gastritis by gastroscopy [8]; <br>⑥Children who can cooperate and accurately describe the subjective symptoms; <br>⑦Children whose family members are willing and able to complete the study and sign the informed consent. <br><br>Case exclusion criteria: <br>①Children with severe heart, liver, and kidney organic diseases or congenital diseases; ②Children with <br>nutritional deficiencies due to other reasons; <br>③Helicobacter pylori-negative children; <br>④Suffering from mesenteric inflammation and others Children with hepatobiliary pancreatic spleen disease.

Information on the child<br>Case inclusion criteria:<br>(1) A child who has been treated for digestive diseases but has no other serious diseases or complications;<br>(2) Children between the ages of 4 and 14;<br>(3) Hp-positive children: C13-UBT determination, gastric mucous membrane biopsy rapid urine enzyme test positive;<br>(4) Clinical manifestations of upper abdominal pain umbilical week discomfort, examination of abdominal pain range in the upper middle abdominal or umbilical week of children;<br>(5) Children diagnosed with chronic gastritis after gastroscopy;<br>(6) Children with children who are able to cooperate with and accurately describe subjective symptoms;<br>(7) Children who are willing and able to cooperate with the family to complete the study and sign the informed consent.<br><br>Case exclusion criteria:<br>(1) Children with a combination of severe heart, liver and kidney diseases or congenital diseases;<br>(2) Children with nutritional deficiencies due to other reasons;<br>(3) Helicobacter pyridobacteria-negative children;<br>(4) Children suffering from inflammation of the intestinal membrane and other liver, bile and pancreatic spleen diseases.

Children's data<br>Case inclusion criteria:<br>① Children with digestive diseases but without other serious diseases and complications;<br>② Children aged between 4 and 14 years old;<br>③ HP positive children [7]: c13-ubt test, gastric mucosa biopsy rapid urease test positive;<br>④ The clinical manifestations were epigastric pain and discomfort around umbilicus. Physical examination showed that the range of abdominal tenderness was in the middle and upper abdomen or around umbilicus;<br>⑤ Children diagnosed as chronic gastritis by gastroscopy [8];<br>⑥ Children who can cooperate with and accurately describe subjective symptoms;<br>⑦ Children whose families are willing and able to cooperate to complete the study and sign the informed consent form.<br>Case exclusion criteria:<br>① Children with severe organic or congenital diseases of heart, liver and kidney;<br>② Children with nutritional deficiency due to other reasons;<br>③ Helicobacter pylori negative children;<br>④ Children with mesenteric inflammation and other diseases of liver, gallbladder, pancreas and spleen.<br>