Heath care system has a server providing service for caring for the health state of each user, and a terminal of the user. The server registers and manages health information including examination results, body temperature and menstruation data of each user based on operation from the user terminal, determines the health state of each user, including a tendency of variation of values of an examination item, based on comparison of time series values of the examination item of the examination result data and based on comparison result between the values of the examination item of the examination result data and a numerical range of reference information corresponding to the examination item, and outputs, to the user terminal, information including a graph of the examination result data, a graph of the body temperature and menstruation data, and a message appropriate for the health state of each user.
