Doctors have transplanted one of Mark Hudson's kidneys into his wife's body to cure her renal failure.
Doctors say it's part of a growing trend in interfamily organ donation.
As donor numbers dwindle, patients are looking to family for donation and having operations before their condition requires dialysis. Genevieve Hussey reports. I originally had reflux as a baby, which was the underlying cause of all my kidney problems. From there, it just went infection after infection, basically ate the kidney away. Kirsty Hudson has suffered for 24 years with the illness and pain of chronic kidney failure.