Helicobacter pylori 315 is usually the value of 315 when the patient performs the breath test, which represents that the patient has Helicobacter pylori infection, but whether the condition is serious or not needs to be determined according to the patient’s condition, if the patient does not have organic lesions, it is generally not serious, and if the patient exists in the organic lesions, it will be more serious. The more common clinical method for detecting H. pylori is the breath test, which is categorized into carbon 13 breath test and carbon 14 breath test. The normal value of carbon 13 breath test is less than 4dpm, and the normal value of carbon 14 breath test is usually less than 100dpm, and the patient’s H. pylori 315 represents H. pylori infection. At this point, the severity of the disease should be determined under the guidance of the doctor based on the patient’s medical history, clinical manifestations, and the results of gastroscopy. If the patient shows only mild bloating and indigestion, and the results of gastroscopy show no obvious organic lesions, the condition is not serious. If the results of gastroscopy show severe gastritis, gastric ulcers, and especially gastric cancer, the condition is more serious. Patients who are examined for H. pylori infection should be treated with standardized medication under the guidance of a doctor to avoid delays.