Helicobacter pylori (Hp) are gram-negative rod bacterium that mainly appears helical, unbranched, and flagellated.1 Hp is mainly present in the gastric mucosa.2 At present, the Hp infection rate is ∼50% of the world’s population, and many types of gastric tissue inflammatory diseases and neoplasm are associated with Hp infection.2,3 The gastric mucosa provides a sterile and highly acidic environment for Hp to survive. Here, HP is linked to neoplasm.