The Welsh Government worked with cancer teams, through the Wales Cancer Network, to determine if there was a better way of measuring the length of time people wait for cancer treatment.
Drwy Rwydwaith Canser Cymru, mae Llywodraeth Cymru wedi gweithio gyda thimau canser i weld a oes ffordd well o fesur hyd yr amser y mae pobl yn aros i gael triniaeth ganser.