First bladder transplant recipient
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Last updated May 19, 2026
As of May 2026: Recovering successfully, off dialysis
On May 4, 2025, surgeons at UCLA performed the first successful human bladder transplant. Oscar Larrainzar, a 41-year-old father of four who'd spent seven years on dialysis after losing his bladder and both kidneys to cancer, received both organs in an eight-hour procedure. The kidney started producing urine immediately. Two days after going home, Larrainzar urinated on his own for the first time in seven years.
Updated May 19
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