We report a case of <em>Helicobacter pylori</em> transient bacteremia in a woman with ulcerated antral gastric cancer. The patient was hospitalized for laparoscopy and subtotal gastrectomy. After surgery she developed fever (39°C) and was empirically treated with levofloxacin. Blood cultures, collected and sent immediately to Laboratory, were positive for a spiral Gramnegative bacterium. This isolate was identified as <em>H. pylori</em> and the specific susceptibility test was performed. One day after the fever was decreased but antibiotic treatment with levofloxacin was continued and it was maintained until discharge. In summary, <em>H. pylori</em> transient bacteremia may occur as a rare complication after stomach surgery. Further studies are necessary to elucidate the potential role of <em>H</em>. <em>pylori</em> presence in blood.