The present invention provides a technology whereby it is possible to analyze the hematocrit value and/or hemoglobin content, rouleaux formation of erythrocytes, and the like in a blood sample on the basis of the electrical properties of the blood sample. Provided are a blood condition analyzing device which is provided with a erythrocyte quantitative evaluation unit for evaluating the hematocrit value and/or hemoglobin content on the basis of the electrical properties of a blood sample at a frequency of 2-25 MHz, and a blood condition analyzing device which is provided with a blood rouleaux evaluation unit for evaluating rouleaux formation of erythrocytes by dividing data for the change with time of the electrical properties of the blood sample at a prescribed frequency by electrical measurement data for the blood sample at a frequency of 2-25 MHz.
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