Gastric ulcers and duodenal bulb ulcers both belong to upper gastrointestinal ulcers. Their symptoms slightly differ; gastric ulcers typically manifest as postprandial pain in the upper abdomen, whereas duodenal bulb ulcers present as hunger pains in the upper abdomen, sometimes accompanied by nocturnal pain. Both types generally exhibit symptoms such as acid reflux and heartburn. The predominant cause for these is infection by Helicobacter pylori, detectable through tests such as the carbon-13 or carbon-14 breath test. If an infection is present, antimicrobial treatment can typically lead to a complete recovery of the ulcers. If there is no Helicobacter pylori infection, the initial approach should still focus on symptomatic treatment. Additionally, adopting good dietary and living habits can facilitate regular gastroscopic follow-ups.