People who have recurrent stomach disorders, take antibiotic medications frequently, or have a family history of stomach cancer need to be tested for Helicobacter pylori. Infection with Helicobacter pylori in the stomach not only triggers the onset of stomach disease, but also recurrent attacks. For people with recurrent stomach disorders, it is best to perform a breath test to determine if there is H. pylori infection in the stomach. Many people use antibiotic medication when they have inflammation in their body. Long-term abuse of antibiotics can lead to damage to the internal environment of the stomach, and these people are more likely to have H. pylori infection, so they need to be screened for H. pylori infection. For patients with family history of gastric cancer, it is better to have regular screening for H. pylori to detect the disease in time and reduce the chance of gastric cancer.