Immunosuppression : It means to suppress the immune response of recipient to prevent transplant rejection.

This is done before or at time of kidney transplantation. The therapy is done with the help of drugs which destroy ‘T’ cells (which are responsible for providing immunity to the body. These T-cells produce antibodies against the foreign graft or transplant and result in the rejection of the transplant. Hence, the immune system of the patient is suprresed so that the transplant is not rejected.