1. A medical image reproducing apparatus for reproducing image information recorded as an image file, wherein: the image file is outputted from a medical instrument capable of switching to either observed images of a subject or images different from the observed images and displaying the switched images, and includes image information of the observed images and timing information indicating display timing of switching to the images different from the observed images and displaying the switched images, the medical image reproducing apparatus comprising: an information extraction portion which extracts the image information and image-relevant information including the timing information from the image file; an image arithmetic portion which generates feature images by highlighting specific features contained in the observed images by using the extracted image information and the extracted image-relevant information; a reproducing and display portion which displays inputted display images; and an image switching control portion which switches the display image outputted to the reproducing and display portion to either the recorded image information or the feature images, the image switching control portion having a function of switching the display images in synchronization with the timing information.