Blood pressure measurement device, system, method and program

In order to be able to reliably determine and notify of abnormalities in an organism and in order to reduce the amount of biological information data, this blood pressure measurement device is provided with: a biological sensor which detects biological information continuously in time; a motion sensor which constantly detects motion information of the organism that is the subject of the biological information; a determination unit which refers to the biological information and the motion information to determine whether or not the organism has begun to move or is moving; a recording unit which, if it is determined that the organism has begun to move, records biological information until a normal value has been reached; an analysis unit which determines whether or not a time history of values, from when the value of the biological information begins to fall and until said value reaches a normal value, falls within a suitable range; and a removal unit which, if the time history is within an appropriate range, removes corresponding biological information from the recording unit.