The urine analyzer 10 includes a sample preparation unit 30 for mixing a urine sample with a hemolytic agent to prepare a measurement sample, a flow cell 41 for flowing a measurement sample, a light source 42 for irradiating light on the measurement sample flowing through the flow cell 41, a light receiving unit 50 for receiving scattered light given off from the measurement sample by irradiation of light and outputting a scattered light signal, and an analysis unit 12 for detecting fat particles in the measurement sample by using a parameter reflecting the intensity of the scattered light signal output by the light receiving unit 50, and a parameter reflecting the width of the scattered light signal.
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