Candida tropicalis is a species of yeast in the genus Candida. It is easily recognized as a common medical yeast pathogen, existing as part of the normal human flora. Candida tropicalis is a glucose and maltose fermenting yeast. It does not ferment lactose nor hydrolyze urea and has variable results when tested for sucrose, galactose, and trehalose fermentation. Candida tropicalis is a common species isolated from the blood that is not Candida albicans.