All 50-74-year-olds in England will now receive a home-testing kit for bowel cancer every two years.
NHS England has been posting the faecal-immunochemical test (Fit) to all 54-74-year-olds since 2021 and anyone older can request one over the phone.
But after trials of local screening programmes for 50-year-olds, the age is now being lowered, bringing it in line with Scotland and Wales.
And more than 850,000 extra people in England will now be able to return a stool sample to be checked for blood.