Background: Gastric malignant tumors are the sixth most common malignancy in the world and the fourth leading cause of cancer death in the world. Approximately 90% of gastric malignant tumor cases originate from the epithelium, namely adenocarcinoma. The etiology and main risk factors for gastric malignant tumors are caused by Helicobacter pylori infection. Symptoms of gastric malignant tumors …