An endoscope of the invention includes: an LED for supplying illumination light to illuminate a subject; an image pickup device for picking up an image of a region to be inspected of the subject; a video display device provided with a monitor portion on which an endoscope image of the region to be inspected picked up by the image pickup device is displayed and an exterior member for holding the monitor portion; a power supply control circuit for supplying electric power to drive the LED and cause the LED to emit illumination light; and a heat radiation portion for radiating heat generated by the power supply control circuit formed on a rear surface opposing to a disposition surface of the exterior member on which the monitor portion of the video display device is provided.