The dpm value is not related to the severity, but a dpm value of 1000 or more indicates the presence of H. pylori infection. The dpm is the unit of measurement for the carbon 13 breath test and the carbon 14 breath test. The normal range of values for the carbon 13 breath test is 0 to 4 dpm, while the normal range of values for the carbon 14 breath test is 0 to 100 dpm, and the higher the dpm value, the greater the likelihood of H. pylori infection. If the dpm value is more than 1000, which is obviously out of the normal range, it indicates the existence of Helicobacter pylori infection, and Helicobacter pylori infection is closely related to gastritis, gastric ulcer, gastric cancer and other diseases, so it needs regular sterilization treatment. If the dpm value is above 1000, it is recommended to consult a doctor for proper medication under the guidance of a doctor.