A gastroscopy result showing Hp+ does not necessarily mean that a biopsy has been taken. The main methods of H. pylori screening include: breath test, rapid urease test, tissue staining, H. pylori antibody test, and fecal examination. 1. The breath test is a urea capsule labeled with isotope carbon 13 or isotope carbon 14, which, when swallowed, reacts with the urease enzyme produced by H. pylori to produce carbon dioxide. It is absorbed by the body and exhaled from the respiratory tract, and then the breath test detects the presence of carbon 13 or carbon 14 in the exhaled gas to detect and quantify H. pylori. 2. H. pylori antibody test, that is, to check the concentration of H. pylori antibodies in the blood, which can indirectly reflect whether there is H. pylori infection in the body. 3. Rapid urease test, which is to take out a piece of gastric mucosa tissue during gastroscopy to test the urease content to determine whether there is H. pylori infection in the gastric mucosa. 4. Tissue staining, which can be performed under a microscope to see if H. pylori is present in the tissue taken from the gastric mucosa. 5. Stool examination, which examines the presence of H. pylori in the patient’s stool to further determine the presence of H. pylori infection. If the result of gastroscopy shows Hp+, which represents H. pylori infection, the patient should cooperate with the doctor for timely treatment to avoid aggravation of the condition.