The researchers recruited gastroenterologists. Physician subjects recruited Helicobacter pylori-positive patients before and after receiving standardized training on Helicobacter pylori eradication. There are no restrictions on treatment options and drugs during the trial. Compare the eradication rate, adverse reaction rate, and patient compliance before and after physician training.

The researchers recruited no less than 20 gastroenterologists to participate in the study, and gastroenterologists recruited 25 patients who were over 18 years of age and were positive for Helicobacter pylori for the first time. In this process, the patient population is not restricted, and the eradication program is not restricted. Gastroenterologists followed up their diagnosis and treatment. Researchers track and record patients' medications and adverse reactions during medication via phone or WeChat to assess patient compliance. Record the eradication rate. The researchers will provide standardized Helicobacter pylori eradication training for the Department of Gastroenterology after all patients treated by gastroenterologists have been eradicated and reviewed. After the training, the gastroenterologist recruited 25 patients who were over 18 years old and were newly treated with Helicobacter pylori positive. In this process, the patient population is not restricted, and the eradication program is not restricted. Gastroenterologists followed up their diagnosis and treatment. Researchers track and record patients' medications and adverse reactions during medication via phone or WeChat to assess patient compliance. Record the eradication rate. Compare the eradication rate, adverse reaction rate and compliance of patients before and after the training of gastroenterologists.

Inclusion Criteria:

• 1.Physician specialized in gastroenterology.
• 2.Diagnosis and treatment conditions for H. pylori exist in the hospital where the gastroenterology doctor is located.

(C13 urea breath test, C14 urea breath test, rapid urease test, stool H. pylori antigen test, histopathological test, H. pylori culture, any of the above)

Exclusion Criteria:

• 1.Those who are unable or unwilling to provide informed consent.
• 2.Patients with H. pylori have never been diagnosed and treated.