A positive C13 breath test does not indicate severity, but only that the organism is infected with H. pylori. The C13 breath test is a common test used in gastroenterology to detect the presence of H. pylori infection and is simple and non-invasive. If the breath test result is positive, it indicates the presence of H. pylori infection. However, the result does not indicate a serious problem. A positive result should be followed by medical advice to determine whether or not to treat the infection. The main form of treatment is a quadruple combination of two antibiotics (amoxicillin + tinidazole) + colloidal bismuth pectin + omeprazole, with a repeat breath test one month after discontinuing the medication. Drugs need to be rationally applied according to medical advice.