Gastric ulcers found under gastroscopy require pathological biopsy routinely, and this condition does not necessarily mean that the disease is serious. Because gastric ulcer is a precancerous lesion, when gastric ulcer is found, the possibility of having malignant gastric ulcer is firstly excluded, and the difference between these two is mainly through pathological biopsy performed under gastroscopy. When the pathological biopsy reveals cancer cells or cells with heavy heterogeneous hyperplasia, it is considered to have cancerous lesions, which is a serious condition. Therefore, when a gastric ulcer is found and a pathological biopsy is performed under gastroscopy, the patient does not need to be particularly worried and needs to wait patiently for the pathological results of the gastroscopy before making a decision; if the pathological biopsy under gastroscopy does not reveal any problem, the treatment is the same as that of a normal gastric ulcer, which needs to be treated with drugs that inhibit stomach acid and promote ulcer healing.