[Object] To provide a spectacle-style display device for medical use with which it is possible to change a magnification of an enlarged image, even during surgery.[Solution] Provided is a spectacle-style display device for medical use, including: a display unit through which a surgical field is visible, and which can display an image; two imaging units that image the surgical field; an image processing unit that, on a basis of captured images imaged by the imaging units, generates a three-dimensional enlarged image to be displayed on the display unit; and a control unit that modifies a magnification of the enlarged image on a basis of a user instruction.