HP a plus sign indicates that there is H. pylori infection in the stomach. When H. pylori infection in the stomach, it is easy to induce gastritis, gastric ulcer, duodenal ulcer, gastric polyp, gastric lymphoma and other gastrointestinal diseases, so when H. pylori infection in the stomach, patients are recommended to perform H. pylori infection eradication treatment in a timely manner. At present, the treatment of H. pylori infection, there are triple therapy, quadruple therapy, commonly used quadruple therapy recommended one as follows, amoxicillin, tinidazole, omeprazole, compound bismuth aluminate granules four combined oral for two weeks, review carbon 14 or carbon 13 breath test.