H. pylori test is recommended to hang up with the gastroenterology department. Suspected Helicobacter pylori infection can hang up the gastroenterology department for examination, mainly including C13 and C14 breath test. the normal value of C13 breath test is 0~4 bpm, greater than this value is positive for Helicobacter pylori; C14 breath test can also be performed, the normal value is less than 100 bpm, greater than this value is positive for Helicobacter pylori. Positive H. pylori need to be eradicated by drugs, can be used in accordance with the doctor’s advice of quadruple therapy, including a proton pump inhibitor, a bismuth agent, and two antibiotics, such as omeprazole, amoxicillin, metronidazole, bismuth potassium citrate and so on. It is recommended to go to the gastroenterology department of the hospital for examination.