Cyhoeddodd Llywodraeth y DU ddatganiad ysgrifenedig arall ar 4 Mehefin a oedd yn manylu ynghylch nifer y menywod sy’n byw yng Nghymru ac sy’n cael eu heffeithio gan y broblem yn rhaglen Lloegr. Ysgrifennodd Public Health England at 94 o drigolion Cymru a oedd yn arfer byw yn Lloegr ac a fethodd eu sgriniad olaf pan oeddent yn rhan o raglen Lloegr. Cysylltwyd â 183 o fenywod eraill yng Nghymru am eu bod wedi cofrestru â meddyg teulu yn Lloegr ac wedi cymryd rhan yn rhaglen sgrinio Lloegr.  Mae Iechyd Cyhoeddus Cymru a Public Health England wedi bod yn cydweithio'n agos i gysylltu â'r holl fenywod a gafodd eu heffeithio er mwyn cynnig sgrinio neu eu gwahodd i ystyried hunan-atgyfeirio.
The UK Government issued a further written statement on 4 June which detailed within it the numbers of women resident in Wales who are affected by the problem issues in the English programme. Public Health England (PHE) wrote to 94 Welsh residents who previously lived in England and had their final screen missed when part of the English programme. A further 183 Welsh residents were contacted because they are registered with an English GP and had taken part in the English screening programme.  PHW and PHE have been working closely together to ensure all affected women have been contacted and offered screening or invited to consider self referral.