Gastric ulcers larger than 2cm are not certain to be stomach cancer. Gastric ulcers larger than 2cm are called giant ulcers, which are more prone to malignant changes and develop into gastric cancer. However, huge ulcer only has the tendency of malignant transformation, and it is not certain that it is cancer, so patients should not have too much psychological pressure. If the gastric ulcer is more than 2cm and there is a possibility of cancer, gastroscopy should be performed according to the doctor’s suggestion and biopsy should be taken and sent to histopathology to avoid mistakes and omissions. For gastric ulcers, it is necessary to clarify whether there is Helicobacter pylori infection, and if so, it is necessary to carry out quadruple bactericidal treatment, or direct surgical resection of the ulcer area to avoid cancer. Gastric ulcers larger than 2cm is a more dangerous situation, must pay attention to, actively to the hospital, do not continue to delay the condition.