Carbon 14 blowing more than 1000 can not judge whether there is a serious lesion or not, it can only indicate the presence of a large number of H. pylori infection in the body, to determine the severity of the lesion or not, can be combined with gastroscopy. Carbon 14 breath test is a quick and easy, high specificity, safe and effective diagnosis of Helicobacter pylori infection, its normal value is generally lower than 100dpm/mmolCO2. when the result is 1000dpm/mmolCO2, it means that there is a large number of Helicobacter pylori infection in the body. Before the carbon 14 breath test, you need to pay attention to fasting for more than six hours before the experiment; stop using antibiotics, acid-suppressing drugs, gastric mucosa protectants, etc. for more than two weeks. It is recommended that the patient go to the hospital in time to improve the relevant examination and active treatment.