Gastroscopy hp (-) means that gastroscopic biopsy examination of Helicobacter pylori is negative, suggesting the absence of Helicobacter pylori infection. 1. Gastroscopy is the most commonly used and accurate method for esophageal, gastric and duodenal diseases, endoscopy can not only visualize mucosal lesions, but also take part of the tissue for biopsy or cytological analysis of the suspected lesion area. 2. If the test result is (+), it suggests the presence of Helicobacter pylori infection; if the test result is (-), it suggests the absence of Helicobacter pylori infection. Gastroscopy is an invasive test, if there is discomfort after gastroscopy, you should consult a doctor in time. If the test is positive for H. pylori, you should follow the doctor’s instructions to review the diagnosis and standardize the treatment.