Treatment is provided at an ideal timing. Provided is an ultrasonic treatment apparatus including: a therapeutic-ultrasound-wave radiating portion that radiates therapeutic ultrasound waves for causing an ultrasonic treatment material having a tendency to accumulate in an affected area to exert a therapeutic effect an accumulation determining portion that determines whether or not the ultrasonic treatment material has accumulated in the affected area and a determination-result presenting portion that presents a determination result obtained by the accumulation determining portion.
