Urine Test Helps Detect Kidney Transplant Rejection by Karishma Abhishek on March 9, 2021 at 8:23 AM Twenty percent of patients experience kidney transplant rejection even after a long waiting time till 6years. The recipient's immune cells recognize the newly received kidney as a foreign organ and thus on refusing the acceptance of the donor's antigens, results in transplant rejection. invasive biopsy procedures, (that requires multiple days of hospitalization and risks of complications) or creatinine blood tests (do not always yield definitive results). Moreover 70-80 percent of biopsies end up being normal. To overcome these hurdles, a new easier alternate way that is