A positive gastric biopsy for Hp confirms the diagnosis of H. pylori infection and eliminates the need for a 13-carbon breath test. Hp(+) indicates that it is positive for H. pylori, suggesting the presence of H. pylori infection in the body.The methods of detecting Hp infection include invasive and non-invasive tests. 1. Invasive tests: including histologic testing, rapid urease test (RUT), gastroscopy biopsy and so on. 2. Non-invasive tests: Urea breath test (UBT) is often recommended for non-invasive tests, such as 13-carbon or 14-carbon urea breath test. In the clinical examination, whether it is gastroscopy biopsy Hp test or breath test, any one of the positive can be diagnosed as Hp infection. When a patient has a positive result in one of the tests, he or she should consult a doctor in time, who will analyze and diagnose the case according to the specific circumstances.