Is Bowel Cancer Screening Finally Working?

Bowel cancer is the fourth most common cancer in the UK and the second biggest cancer killer, claiming around 16,800 lives each year.^[3] When caught at Stage 1, the five-year survival rate is over 90%. By Stage 4, it collapses to around 10%.^[3] The NHS Bowel Cancer Screening Programme, launched in 2006, invites eligible adults to complete a home testing kit every two years. For its first thirteen years it used the guaiac faecal occult blood test — a kit requiring six separate samples with an uptake rate stubbornly stuck in the mid-50s. The switch to the faecal immunochemical test in June 2019 was transformative: FIT requires a single sample and is markedly easier to use. Uptake jumped from 57% to over 60% within a year and has continued climbing to 67.3% by 2024.^[1]

Simultaneously, NHS England began lowering the eligible age from 60 to 50 — a phased expansion that is already sending 6.3 million invitations per year.^[1] The combination of a better test and a wider eligible population means more cancers are being caught at early, treatable stages: 53.1% of screen-detected bowel cancers were diagnosed at Stage 1 or 2 in 2024, up from 38% in 2010.^[2] Age-standardised bowel cancer mortality has fallen 24% over the same period.^[2] The remaining challenge is inequality: screening uptake in the most deprived areas stands at just 51%, compared with 76% in the least deprived — a 25-percentage-point gap that has barely narrowed since the programme began.^[1]