A medical image display device comprising: a display; an adjustment value storage unit configured to store a plurality of adjustment value sets for adjusting image quality for displaying a medical image on the display with a predetermined image quality, the plurality of adjustment value sets corresponding to different types of medical images, each adjustment value set including at least two adjustment values corresponding to different ambient brightness; an operation unit configured to select an adjustment value set; an ambient light sensor configured to detect ambient brightness; an adjustment value holding unit configured to hold an adjustment value; an adjustment value setter configured to select an adjustment value set from the adjustment value storage unit selected by the operation unit, to select an adjustment value from the selected adjustment value set corresponding to the ambient brightness detected by the ambient light sensor, and to cause the adjustment value holding unit to hold the selected adjustment value; an image attribute detector configured to detect an attribute of medical image data that is supplied to the display, the attribute indicating a type of a medical image of the medical image data; a determiner configured to determine whether or not the adjustment value held in the adjustment value holding unit matches an adjustment value corresponding to the attribute detected by the image attribute detector; and a notification unit configured to visually or audibly notify that the adjustment value held in the adjustment value holding unit does not match an adjustment value suitable for the medical image to be displayed on the display, when the determiner determines that the adjustment value held in the adjustment value holding unit does not match the adjustment value corresponding to the attribute detected by the image attribute detector. a display; an adjustment value storage unit configured to store a plurality of adjustment value sets for adjusting image quality for displaying a medical image on the display with a predetermined image quality, the plurality of adjustment value sets corresponding to different types of medical images, each adjustment value set including at least two adjustment values corresponding to different ambient brightness; an operation unit configured to select an adjustment value set; an ambient light sensor configured to detect ambient brightness; an adjustment value holding unit configured to hold an adjustment value; an adjustment value setter configured to select an adjustment value set from the adjustment value storage unit selected by the operation unit, to select an adjustment value from the selected adjustment value set corresponding to the ambient brightness detected by the ambient light sensor, and to cause the adjustment value holding unit to hold the selected adjustment value; an image attribute detector configured to detect an attribute of medical image data that is supplied to the display, the attribute indicating a type of a medical image of the medical image data; a determiner configured to determine whether or not the adjustment value held in the adjustment value holding unit matches an adjustment value corresponding to the attribute detected by the image attribute detector; and a notification unit configured to visually or audibly notify that the adjustment value held in the adjustment value holding unit does not match an adjustment value suitable for the medical image to be displayed on the display, when the determiner determines that the adjustment value held in the adjustment value holding unit does not match the adjustment value corresponding to the attribute detected by the image attribute detector.