Provided are diagnosis assistance apparatus, diagnosis assistance method, and diagnosis assistance program, according to which it is possible to effectively assist diagnosis by making it easy to understand a state of biological information of a measurement subject. A diagnosis assistance apparatus includes: biological information analysis unit configured to analyze a plurality of pieces of biological information that are measured from a measurement subject and are stored along with measurement times in a storage medium, and calculate an occurrence frequency of a fluctuating state in which the biological information fluctuates by a threshold or more in a predetermined period and representative value for fluctuation amount of the biological information in the fluctuating state that occurs in the predetermined period； and an analysis result output unit configured to output a graph indicating an analysis result obtained by associating occurrence frequency and representative value that were calculated by the biological information analysis unit.
