Gellir trawsblannu arennau, y galon, iau neu afu, ysgyfaint, pancreas a'r coluddyn bach. Mae technegau'n gwella drwy'r amser a chyn hir byddwn yn gallu trawsblannu rhannau eraill o'r corff i helpu mwy fyth o bobl.
Electrician Martyn Gwilliam had always joked that, when he died, he wanted to donate his corneas so he could "keep an eye on the talent." Following his death in a motorcycle crash, his wishes were carried out - but both the recipients were young women!
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