Currently, the infection rate of Helicobacter pylori in our country has exceeded 50%. If there is an infection of Helicobacter pylori and it is accompanied by symptoms or diseases of the digestive system, or if the patient has a family history of gastric cancer, eradication treatment for Helicobacter pylori is needed. This is because Helicobacter pylori has been proven to be the main cause of chronic gastritis, peptic ulcers, and even gastric cancer. The method of eradication involves a proton pump inhibitor, two types of antibiotics, and a bismuth agent, with treatment lasting for 14 days. After the 14-day treatment period, medications are stopped for a month. One month later, a carbon-14 breath test is performed to confirm whether Helicobacter pylori has been converted to negative. If it has converted to negative, it means that the eradication treatment was successful.