Gastric ulcers can cause gastrointestinal bleeding, as gastrointestinal bleeding is a common complication of gastric ulcers. Clinically, gastric ulcers may present as gastrointestinal bleeding or simply as rhythmic pain, typically manifested as upper abdominal pain related to eating. Bleeding caused by gastric ulcers may present as vomiting blood in some patients. Of course, if the bleeding is minor and there is no vomiting blood, there might only be blood in the stool. The diagnosis of gastric ulcers primarily relies on gastroscopy; therefore, for patients suspected of having gastric ulcers, we generally recommend an early gastroscopy to confirm the diagnosis and assess the condition. The treatment of gastric ulcers mainly depends on medication, with options including acid-reducing and stomach-protecting drugs. The treatment duration is about 6 weeks, and most patients can be well controlled. Of course, attention should be paid to diet, rest, and regular follow-up appointments in the future. (The use of drugs should be under the guidance of a doctor.)