A processor 3 of an endoscope apparatus 1 that is a medical apparatus generates two images that are a normal-light observation image and a special-light observation image that are obtained by picking up a return light, determines matching of observation fields of view with respect to the two images, generates a marker M that indicates a position on a living tissue for at least one of the two images based on the determination result, causes the generated two images to be displayed within a screen of a monitor 5, and displays the generated marker M by superimposing the marker M on at least one of the two images.
