Mae cyflwyno prawf sylfaenol am Feirws Papiloma Dynol risg uchel yng Nghymru yn ffordd gwbl newydd o sgrinio serfigol. Mae dros 100 o wahanol fathau o HPV, ond dim ond tua 13 sy'n gysylltiedig â chanser, a'r rhain sy'n cael eu galw'n fathau 'risg uchel'. Bydd y prawf newydd yn edrych am yr 13 math hysbys o HPV risg uchel, sy'n achosi 99.8% o'r achosion o ganser ceg y groth. Gall system imiwnedd menyw ymladd yn erbyn y rhan fwyaf o heintiau HPV yn naturiol, ond mae tua 1 o bob 10 haint yn anoddach cael gwared ohonynt. Yn achlysurol, gall HPV ddechrau niweidio celloedd ac achosi iddynt newid, a gall hynny ddatblygu i fod yn ganser os na chaiff ei drin.
The introduction of high risk HPV primary testing in Wales represents a completely new approach to cervical screening. There are over 100 different types of HPV, but only around 13 types are associated with cancer and these are known as 'high risk' types. The new test will look for the 13 known high risk HPV types, which cause 99.8% of cervical cancers. A woman’s immune system fights off most HPV infections naturally, but about 1 in 10 infections are harder to get rid of. Occasionally, HPV may start to damage cells and cause them to change which, if left untreated, can develop into cancer.