Doctors at the Royal Marsden in Sutton say a new study could ‘turn the tide’ on the way we screen and diagnose prostate cancer.

The ‘BARCODE 1’ study calculated the risk of the disease using DNA extracted from saliva.

Findings show the “spit test” is more accurate at identifying those with high genetic risk than the current PSA blood test approach.

It’s hoped the new at-home test could provide a simpler and cheaper method for early diagnosis.