Hp is the abbreviation of Helicobacter pylori, which is a Gram-negative bacillus, spiral-shaped, microaerobic, harsh growth conditions, generally present in the stomach, and is a harmful bacteria. H. pylori is prone to cause H. pylori disease, including gastritis, peptic ulcers, colon polyps, lymphoproliferative gastric lymphoma caused by H. pylori infection, and may even lead to the development of gastric cancer. Differential diagnosis is usually made by H. pylori urea breath test, H. pylori urease test, H. pylori stool antigen test, etc. When the test result is positive, it indicates the possible existence of H. pylori infection. Treatment is mainly with anti-inflammatory drugs, it is recommended to use drugs under the guidance of a doctor, you can take oral amoxicillin, metronidazole or ornidazole, together with probiotics, lactobacillus, triple vaccine, so as to inhibit H. pylori infection, you can also take oral omeprazole for treatment, 90% of infected people can achieve the purpose of cure after 1-2 weeks of treatment. In daily life, if you experience fullness, discomfort or pain in the upper abdomen after eating, often accompanied by other undesirable symptoms such as belching, bloating, acid reflux and loss of appetite, it is recommended to go to the hospital for prompt examination. Patients who have undergone stomach surgery or have relatives with stomach cancer are recommended to undergo screening for early detection of H. pylori infection in order to kill H. pylori in a timely and effective manner and prevent disease development.