Helicobacter pylori self-test paper commonly used methods mainly include dry chemical method, colloidal gold detection, dry chemical method is inexpensive, usually in a few dollars to dozens of dollars ranging, while the colloidal gold method is relatively expensive. Dry chemical method to detect Helicobacter pylori as long as it is through the dental floss to take some tartar into the test paper, about 3 minutes can be the result, can be faster to determine whether there is Helicobacter pylori infection. Dry chemical test paper is relatively cheap, different manufacturers, the price is slightly different, cheap four or five dollars a box, more expensive tens of dollars a box. Colloidal gold method of self-testing H. pylori is often used to detect two specimens of feces and fingertip blood, fecal specimens to detect the antigen of H. pylori, and blood test strips are fingertip blood sampling to detect the content of H. pylori antibodies in human plasma. Colloidal gold H. pylori self-test paper is sold at a relatively high price, with the cheaper ones costing $20 to $40 and the more expensive ones costing hundreds of dollars. Of course, the exact cost of H. pylori self-testing paper is based on the price of the drugstore. Since the self-test paper has a certain false-positive rate and false-negative rate, the patient is best to go to the hospital for carbon 13 or carbon 14 breath test or gastroscopy pathology examination, in order to clarify whether there is H. pylori infection.