Over the last 3 years, the age of bowel cancer screening has been lowered in Wales, in line with recommendations from the UK National Screening Committee.
Dros y 3 blynedd diwethaf, mae’r oedran cymwys ar gyfer profion sgrinio ar gyfer canser y coluddyn wedi cael ei ostwng yng Nghymru, yn unol â’r argymhellion gan Bwyllgor Sgrinio Cenedlaethol y DU.