A medical image diagnosis apparatus according to an embodiment includes an X-ray tube and an X-ray detector, an input interface, and processing circuitry. The processing circuitry is configured to cause a protocol selecting screen to be displayed, which includes a first display region used for displaying a plurality of imaging protocols each including at least one scan and a second display region used for displaying a plurality of icons representing a plurality of scans selected from the imaging protocols and being arranged in a sequential order of execution. When a scan condition of the plurality of scans in the second display region is revised, the processing circuitry is configured to change the display the plurality of icons in accordance with the revised scan condition.