Men are more likely to develop bowel cancer now than they were 35 years ago, research shows.
The chance of a British man developing the disease has risen from one in 29 to one in 15. And it has jumped from one in 26 to one in 19 for women, it was revealed.
Bowel cancer diagnosis in men has increased from 11,800 in 1975 to 21,500 in 2008, Cancer Research UK figures show.
The figures for women have also risen from 13,500 in 1975 to 17,400 in 2008, but survival times have also increased, the figures reveal.
Around 50% of those diagnosed with the disease today live for at least a decade, which is double the number who would have survived for that length of time in the 1970s.
Cancer Research UK epidemiologist Professor Peter Sasieni, who produced the figures published in the British Journal of Cancer, said: "As people are living longer the numbers getting cancer have increased and the lifetime risk of developing bowel cancer has gone up."