H. pylori c13 value of 64dpm is already well above the normal range. H. pylori C13, also known as H. pylori carbon 13 breath test, is a commonly used clinical method to detect H. pylori, and its normal range is 0~4dpm. so, H. pylori c13 value of 64dpm is already much higher than the normal range, suggesting that there is H. pylori infection. H. pylori infection is closely related to chronic gastritis, peptic ulcer, gastric cancer and other diseases, so the diagnosis of H. pylori infection should be taken under the guidance of the doctor to eradicate H. pylori with quadruple therapy (two antibiotics combined with bismuth and proton pump inhibitor), such as amoxicillin + levofloxacin, bismuth potassium citrate and omeprazole. In case of abnormal H. pylori carbon 13 test value, it is recommended to go to the hospital and ask the doctor to make a judgment, and it is not advisable to make a blind judgment on your own.