An ultrasound diagnostic apparatus comprising: an image memory that stores ultrasound images of a plurality of frames which are continuous in time series and include a measurement target part of a subject as a measurement target; an operation unit that is used by a user to select one of the plurality of frames as a selected frame; a display unit that displays an ultrasound image of the selected frame: a measurement unit that performs measurement for the measurement target part of the subject from the ultrasound image; a determination unit that determines whether the measurement by the measurement unit has succeeded or failed; and a display switching unit that displays a measurement result in the selected frame on the display unit in a case in which the determination unit determines that measurement for the selected frame by the measurement unit has succeeded and displays an ultrasound image of at least one peripheral frame different from the selected frame among the plurality of frames stored in the image memory and a measurement result in the at least one peripheral frame on the display unit in a case in which the determination unit determines that the measurement for the selected frame by the measurement unit has failed. an image memory that stores ultrasound images of a plurality of frames which are continuous in time series and include a measurement target part of a subject as a measurement target; an operation unit that is used by a user to select one of the plurality of frames as a selected frame; a display unit that displays an ultrasound image of the selected frame: a measurement unit that performs measurement for the measurement target part of the subject from the ultrasound image; a determination unit that determines whether the measurement by the measurement unit has succeeded or failed; and a display switching unit that displays a measurement result in the selected frame on the display unit in a case in which the determination unit determines that measurement for the selected frame by the measurement unit has succeeded and displays an ultrasound image of at least one peripheral frame different from the selected frame among the plurality of frames stored in the image memory and a measurement result in the at least one peripheral frame on the display unit in a case in which the determination unit determines that the measurement for the selected frame by the measurement unit has failed. a measurement unit that performs measurement for the measurement target part of the subject from the ultrasound image; a determination unit that determines whether the measurement by the measurement unit has succeeded or failed; and a display switching unit that displays a measurement result in the selected frame on the display unit in a case in which the determination unit determines that measurement for the selected frame by the measurement unit has succeeded and displays an ultrasound image of at least one peripheral frame different from the selected frame among the plurality of frames stored in the image memory and a measurement result in the at least one peripheral frame on the display unit in a case in which the determination unit determines that the measurement for the selected frame by the measurement unit has failed. <EOS>