A diagnosis support method comprising: obtaining first blood glucose level information at a first time point and/or second blood glucose level information at a second time point which is later, by a predetermined period, than the first time point placing a collection member, which is configured to collect a tissue fluid, on the skin of the subject for the predetermined period from the first time point to the second time point obtaining glucose information about an amount of glucose contained in the tissue fluid collected by the collection member and generating diagnosis support information for supporting a diagnosis of presence or absence of hypoglycemia in the subject, based on the first blood glucose level information and/or the second blood glucose level information and the glucose information. A diagnosis support system and a diagnosis support apparatus are also disclosed.
