A fluorescence endoscope and a fluorometry method that allow distinguishing between normal and affected areas in a simple manner by reducing the effect of the distance from a subject. A light source that emits light for irradiation of a subject, fluorescence image-acquiring section for acquiring an image of fluorescence contained in return light originating from the subject, fluorescence-image generating section for generating fluorescence image data based on fluorescence-related data acquired by the fluorescence image-acquiring section, region-of-concern defining section for defining a region of concern with a higher fluorescence intensity than a surrounding region based on the fluorescence image data, neighboring-region defining section for defining a neighboring region near the region of concern, and image-operation section for generating corrected image data based on the ratio of a grayscale level related to fluorescence intensity in the region of concern to a grayscale level related to fluorescence intensity in the neighboring region.
