Abstract
Purpose of medical checkup is early discovery and the treatment of various kinds of diseases. The checkup including discovery of life-style related diseases is carried out annually in companies or communities in Japan. The examination items are almost common, however, under the present conditions, so long as a subject watches values of the result, he or she can merely judge whether the test values are normal or not. It is almost impossible for the subject without knowledge of medicine to judge his or her own health state and to understand what kind of habit must be improved. In this research, the construction of a health evaluation system which visibly indicates a health state was attempted from each person's checkup list by using the feature of self-organizing map (SOM: Self-Organizing Maps) that multi-dimensional data can be mapped to the two-dimensional surface.