The symptoms of gastric ulcers mainly include upper abdominal pain, belching, acid reflux, nausea, vomiting, heartburn, early satiety, poor appetite, and indigestion. The characteristic of the upper abdominal pain is that it worsens after eating and decreases or disappears when hungry or on an empty stomach, indicating a regular pattern of pain. For patients exhibiting these symptoms, it is advised to undergo a gastroscopy to confirm the diagnosis. If the gastroscopy reveals ulcers on the gastric mucosa, the diagnosis of gastric ulcers can be confirmed. It is also recommended to conduct a Carbon-14 breath test to determine if there is an infection with Helicobacter pylori. It has been confirmed that Helicobacter pylori can cause peptic ulcers and chronic gastritis among other diseases. If the infection test is positive, eradication treatment for Helicobacter pylori is needed.