A medical machine for fluid treatment comprises a module (400) for management and sending of signal messages containing information relating to means (3) for fluid treatment. The module (400) comprises means (401) for determining a form for sending a signal message which is selectable automatically or manually from among a plurality of predefined forms. The module further comprises means (403) for generating contents of the signal message which comprise information (404a, 404b, 404c, 404d) relating to means (3) for fluid treatment; the contents (412) are created by selecting, for example via touch buttons on a touch screen, from among a selectable plurality of types of predefined contents (404a, 404b, 404c, 404d) and associating the relative data (405a, 405b, 405c, 405d) to the selected type; the module further comprises means (406) for determining at least an addressee to whom to send the signal message.