A control method displays a display screen including a first display area that displays a target medical image and a second display area that displays a received plurality of similar medical images including first and second similar medical images, the first and second similar medical images being displayed adjacently to each other in the second display area. If a first operation is sensed, the control method displays the target medical image adjacent to the first similar medical image in the second display area, and also display the target medical image adjacent to the second similar medical image in the second display area. The first operation is an operation of moving the target medical image adjacent to the first similar medical image in the second display area, and also moving the target medical image adjacent to the second similar medical image in the second display area.