Abstract
A case of mixed infestation of Ancylostoma duodenale and Necator americanus was reported. A-85-years-old female was admitted for deterioration of chronic heart failure with slight anemia and positive stool occult blood. Upper gastrointestinal endoscopy revealed many worms in duodenum, and we captured the worms by biopsy forceps. Worms were identified as Ancylostoma duodenale and Necator americanus. Mixed infestation of them is rarely reported. After admistration of pyrantel pamoate and ferrum, anemia improved and stool occult blood turned into negative. Hookworms infestation has been rare, but we must take them into account to be the cause of anemia.