normally the kidneys doesn't become full because the toxins which are filtered are excreted together with water in the form of urine, in some cases when kidneys become defective dialysis has to be done to remove these toxins and if the patient can afford for a transplant it can be of help but in most kidney transplant cases the new kidney does not also function for a long period because it will be rejected by the body wherein the antibody of the receiver will destroy the kidney therefore it cannot function as blood filter
