Factors that increase the risk of gastric cancer include Incomplete metaplasia Extensive metaplasia Family history of gastric cancer Immigration from regions with high incidence of gastric cancer such as Korea, Japan, and South America Routine short-interval (within 1 year) repeat endoscopy and biopsy is not recommended unless the baseline endoscopy was inadequate or showed high-risk histology or unless the patient is at increased risk of gastric cancer.