H. pylori test strips are useful, but false positives can be high, and further examination in the hospital is recommended. H. pylori test paper is a quick way to detect H. pylori, the specific use of the morning without rinsing the mouth or two hours after a meal, take the tartar on the teeth and place it on the yellow disk on the test paper, and press the test paper well. If the paper turns from yellow to red after three minutes, it is positive for H. pylori. However, this method has a relatively high false positive rate of results, so it is not the preferred method of detection. It is recommended that patients go to a regular hospital for carbon 14 breath test, H. pylori antibody test and other related examinations to clarify the diagnosis, and then follow the doctor’s instructions for treatment.