The objectives of this multicenter, prospective, observational study were to investigate the incidence of dyspeptic symptoms in patients with Helicobacter pylori (H. pylori) infection and to continuously follow up the remission of dyspeptic symptoms after H. pylori eradication, so as to provide reference for the clinical diagnosis and treatment strategies of patients with H. pylori infection and dyspeptic symptoms.

Inclusion Criteria:

• Male or female patients aged 18-80 years
• H. pylori infection diagnosed by 13C/ 14C-UBT (> 2 times the cutoff value) and/or gastroscopy (rapid urease strong positive and histological positive)
• Treatment-naive patients with Helicobacter pylori
• Ability and willingness to participate in the study and to sign and give informed consent

Exclusion Criteria:

• Under 18 or over 80 years old
• Organic digestive diseases, such as active peptic ulcer, gastroesophageal reflux, gastrointestinal bleeding, acute/chronic pancreatitis, acute/chronic cholecystitis, gallstones, intestinal obstruction, inflammatory bowel disease, etc.
• Combined with melena, hematemesis, anemia, emaciation and other alarm symptoms
• Pregnant and lactating women
• History of cancer
• History of subtotal gastrectomy
• Severe organ dysfunction of heart, liver, kidney, lung and other important organs and congenital diseases, such as grade IV heart failure, liver failure, uremia, respiratory failure, hemophilia, Wilson's disease, etc.

The study population targets male and female patients aged 15-80 who have not previously been treated for Helicobacter pylori and have been diagnosed via 13C/14C urea breath test or gastroscopy. Participants must be willing and able to give informed consent. Exclusions include individuals under 18 or over 80, those with organic digestive diseases, pregnant or nursing women, those with a history of cancer or partial gastrectomy, and individuals with severe organ dysfunction or congenital diseases. Also excluded are those with symptoms like melena, hematemesis, anemia, or cachexia.