A measurement device (200) includes a measurement unit (202) which performs measurement by emitting electromagnetic waves and scanning an object with the electromagnetic waves, and a control unit (204) which controls the measurement unit (202). The measurement unit (202) is operable in a first scan mode in which the object is scanned in a first direction, or a second scan mode in which the object is scanned in a second direction different from the first direction. The control unit (204) determines a scan mode to be executed by the measurement unit (202).