An ultrasound diagnosis apparatus including: an ultrasound probe having a transducer array； and a processor configured to: perform transmission and reception of an ultrasonic beam from the transducer array toward a subject, into which contrast media including microbubbles is introduced； image a reception signal output from the transducer array to generate an ultrasound image of the subject； acquire trajectories of the microbubbles in a one cross section of the subject by tracking movement of the microbubbles based on the ultrasound image corresponding to the one cross section of the subject； detect, as a feature point, a trajectory, in which a distance between a start point and an end point in a prescribed time range is less than a prescribed value, among the trajectories of the microbubbles； and display the ultrasound image, the acquired trajectories and the detected feature point on the display unit.
