Helicobacter pylori itself is just a bacterium, often parasitizing the stomach or oral cavity of the human body. It cannot be said that Helicobacter pylori has symptoms, but rather that symptoms may occur after being infected by Helicobacter pylori. Many normal people infected with Helicobacter pylori may not exhibit any discomfort. However, if Helicobacter pylori causes gastritis or peptic ulcers, etc., related symptoms may appear. For instance, abdominal pain, bloating, belching, acid reflux, and so on; in cases of peptic ulcers, corresponding symptoms, such as periodic, recurrent episodes of upper abdominal pain associated with eating and so forth, may also occur and will need to be determined based on the specific situation.