Positive Helicobacter pylori needs to be examined again by gastroscopy, because there may be gastritis, gastric ulcer, gastric cancer and other lesions. Positive Helicobacter pylori can only prove that there is Helicobacter pylori infection in the stomach, which can be treated by taking a quadruple combination of acid inhibitors such as omeprazole + metronidazole, amoxicillin, and other antibiotics + bismuth potassium citrate and other gastric mucosal protectants, usually about two weeks of treatment, and then after two weeks of treatment, the breath test is performed again to determine whether Helicobacter pylori infection still exists. However, the positive diagnosis of H. pylori infection through the breath test does not confirm the lesions in the stomach, and gastroscopy can be used to determine whether there is gastric cancer, gastric ulcer, gastritis and other diseases in the stomach, and it is recommended to consult a doctor in a timely manner.