Automation in hematological cytology can identify blood cells in suspe
nsion by new parameters : electrical field variations, light intensity
modifications absorbtion or diffraction by one or two lasers, fluores
cence intensity, cytochemical reactions or specific lysis. The new tec
hnology change the strategy of hematological laboratories. Automation
realizes perfectly the white blood cell differential and modifies hema
tological language with respect to anemia and white blood cells diseas
es.