To provide an ultrasonic diagnostic apparatus and a control program capable of shortening a diagnosis time when a plurality of fetuses are present in a mother.SOLUTION: An ultrasonic diagnostic apparatus includes a measuring unit for executing measurement of predetermined items on each of a plurality of fetuses in a mother； a display unit； a measurement result display control unit for causing the display unit to display measurement results assigned to each of the plurality of fetuses； and an assignment changing unit for causing an operation key related to a change operation for the assignment of the measurement results to be displayed on the same screen as the screen in which the measurement results are displayed, and changing the assignment of the measurement results assigned to each of the plurality of fetuses among the plurality of fetuses according to the operation of the operation key.SELECTED DRAWING: Figure 1【課題】同一母体内に複数の胎児が存在する場合における検診時間を短縮することが可能な超音波診断装置および制御プログラムを提供する。【解決手段】超音波診断装置は、同一母体内の複数の胎児のそれぞれについて、予め定められた項目の計測を行う計測部と、表示部と、複数の胎児についてそれぞれ割り当てられた計測結果を表示部に表示させる計測結果表示制御部と、計測結果の割り当ての変更操作にかかる操作キーを計測結果が表示される画面と同一画面に表示させ、操作キーの操作に応じて、複数の胎児にそれぞれ割り当てられた計測結果の割り当てを複数の胎児間で変更する割り当て変更部と、を備える。【選択図】図１
