Provided are an ultrasound diagnostic apparatus capable of reducing examination time when a plurality of preborn children exist in a body of the same mother. The ultrasound diagnostic apparatus includes: a measurer that measures a predetermined item for each of the plurality of preborn children in the body of the same mother； a display； and a hardware processor that causes the display to display measurement results respectively allocated to the plurality of preborn children, the hardware processor causing an operation key associated with an operation for changing the allocation of the measurement results to be displayed on a same screen as a screen on which the measurement results are displayed, the hardware processor changing the allocation of the measurement results respectively allocated to the plurality of preborn children among the plurality of preborn children in response to an operation of the operation key.
