To automatically provide secondary data such as an easily understandable comment, a time series table, a time series graph, or a balance display graph by inputting a blood test result to be recorded in a recording medium and to quickly and efficiently provide a diagnosis result and advice in an easily understandable way.

A processing method for an at-home blood test result has a test result processing step, wherein the blood test result is inputted automatic operation is conducted according to a program and to data inputted in advance, and secondary data led from the blood test result is outputted; and a report preparation step, which puts in order the secondary data outputted by this test result processing step and prepares a report to be used as at least a part of the diagnosis result and an advice to be informed to a subject.