Cynyddodd nifer y bobl a gafodd wybod nad oedd canser arnynt hefyd, ond mae'n destun pryder bod cynifer yn methu'r dyddiad targed ar gyfer triniaeth. Mae Llywodraeth Cymru yn rhoi pwysau sylweddol ar fyrddau iechyd i wella perfformiad.
The number of people being informed they do not have cancer also increased, but it is concerning that so many are missing the target date for treatment. The Welsh Government is exerting significant pressure on health boards to improve performance.