The aim of our work was a red blood cell deformation (rheological rheological ) at rheological degrees of severity of experimental hemorrhagic shock. The study of erythrocyte deformability violation and a compulsory monitoring of this physical value deserve more attention of fundamental and applied sciences. The modeling of hemorrhagic shock of different stages was performed in the group of anesthetized animals by means of standard blood discharge from the femoral artery (2,5 ml – first stage of shock; 5 ml – second stage of shock; 5ml – third stage of shock, n=12).