The cancer rate of multiple gastric ulcers is not high, usually around 1%. Clinically, multiple gastric ulcers mainly occur in the gastric sinus or corner of the stomach, and occasionally in the fundus or body of the stomach. Most of the ulcers enter the muscular or submucosal layer of the mucosa, and some ulcers may infiltrate deeper into the lamina propria. If the lesion reaches the lamina propria, a small number of patients may develop peptic perforation or even carcinoma. Through systematic and comprehensive treatment of early gastric ulcers and complete eradication of Helicobacter pylori, most patients can achieve clinical cure without cancer. If the gastric ulcer has not been pathologically examined, diagnosed and treated, and the patient has not adjusted his/her lifestyle and diet, the ulcer may transform into atypical hyperplasia after long-term stimulation and then become cancerous, but the chance is usually very low. If the patient is diagnosed with multiple gastric ulcers, it is recommended to go to a regular hospital in time, to clarify the cause of the disease, and then carry out targeted treatment under the guidance of the doctor to minimize the adverse effects of the disease.