A positive carbon 13 breath test generally indicates the presence of H. pylori infection. H. pylori infection is closely related to the development of chronic gastritis, peptic ulcer and gastric cancer. Therefore, after the presence of H. pylori infection is detected, further electronic gastroscopy should be improved to understand the lesions of gastric and duodenal mucosa, and adequate and full treatment with drugs should be administered under the guidance of physicians. Clinicians commonly use a quadruple regimen for H. pylori eradication treatment, i.e., patients are given one proton pump inhibitor (PPI) + bismuth + two antibiotics in combination to control: 1. proton pump inhibitors: commonly used proton pump inhibitors include omeprazole, lansoprazole, pantoprazole and emeprazole; 2. bismuth: mainly colloidal bismuth subcitrate is used to treat the gastrointestinal tract caused by H. pylori infection disease; 3, two antibiotics: commonly used antibiotic composition schemes include amoxicillin + clarithromycin, amoxicillin + levofloxacin, amoxicillin + metronidazole, and tetracycline + furazolidone. The treatment period for H. pylori infection is generally 10-14 days, but can vary individually depending on the severity of the disease, treatment regimen, timing of treatment, and individual constitution. It is important to note that H. pylori can be transmitted by the oral-oral route or the fecal-oral route during treatment. To protect your family and friends, you should not share utensils, cups, toothbrushes and other household items, share meals with your family, disinfect the utensils you use in a timely manner, and do not chew food before feeding it to your children in order to prevent infection and transmission of H. pylori to others.