An index calculating section calculates an edema index value indicating the level of edema at a target portion of the body of a human subject, according to a bioelectric impedance of the target portion. An edema evaluation section identifies the edema stage corresponding to the edema index value calculated by the index calculating section from among a plurality of edema stages indicating the degrees of progress of edema symptoms. A result reporting section reports the edema stage identified by the edema evaluation section to the user.
