Helicobacter pylori blowing test refers to carbon 13 or carbon 14 breath test, after the blowing is completed indicates that the test has been completed, it is possible to eat and will not affect the test results, but you can not eat before the test, you need to fast. Helicobacter pylori is a common cause of various gastric diseases, such as atrophic gastritis, peptic ulcer and gastric cancer. Carbon 13 or carbon 14 breath test is often chosen. Eating before the test may affect the accuracy of the test results, but you can eat after the test is completed. It is recommended to follow the advice of your medical professional for precautions before the test. If Helicobacter pylori infection exists, it should be treated with quadruple therapy, i.e. proton pump inhibitor + bismuth + two kinds of antibiotics, under the guidance of professional physicians, and the specific medication plan should be followed by the doctor’s advice.