Cancer Cases Surge 24% in Under-50s; Prostate Rates Quadruple Since 2001

Seven types of cancer are rising sharply among people under 50 across England, the US, and the Netherlands, according to a World Cancer Research Fund analysis released today. In England, prostate cancer rates among men under 50 jumped from 1 per 100,000 people in 2001 to 3.6 per 100,000 in 2023, while bowel cancer rates more than doubled to 8.4 per 100,000 over the same period. The overall cancer incidence rate among 25 to 49-year-olds in the UK rose 24% between the early 1990s and 2019.

Which cancers are rising fastest in younger adults

Prostate cancer showed the steepest climb, with rates among men under 50 more than tripling between 2001 and 2023. Bowel, kidney, and womb cancer rates all more than doubled, while breast, liver, and pancreatic cancers also increased significantly. The World Cancer Research Fund analysis examined NHS data from 12 cancer types among people under 50 in England. Womb cancer rates rose from 1.8 to 3.9 cases per 100,000 people, while breast cancer increased from 42 to 47.5 cases per 100,000.

What experts think is driving the trend

Researchers point to obesity, poor diets, ultra-processed foods, and physical inactivity as likely contributors. Obesity rates in England have doubled since the early 1990s. However, increased screening and diagnostic awareness may also explain some rises, particularly for prostate cancer where PSA blood testing has expanded significantly since 2000. Dr. Giota Mitrou, executive director of research and policy at WCRF, said the findings show “this current trajectory is concerning” and called for treating early-onset cancer as a serious prevention priority. Scientists stressed that no single factor explains all the increases and more research is needed.

A major study recruiting 250,000 people to find answers

King’s College London and ZOE launched the PROSPECT-UK trial to investigate why younger people are developing cancer at higher rates. The study is recruiting 250,000 participants across the UK to track diet, lifestyle, gut health, and environmental exposures over time. Participants will complete online questionnaires about their diet and lifestyle, with a subset providing blood and stool samples. The research aims to identify which foods and dietary patterns link to early-onset bowel cancer, including brand-level detail on processed foods for the first time.

Why the increase may not be entirely real

Experts caution that some of the rise reflects better detection rather than more disease. PSA testing in men aged 40 to 49 jumped from 3.3 per 1,000 person-years in 2000 to 21 per 1,000 person-years in 2017, meaning more prostate cancers are found earlier and some may never have become clinically serious. Dr. Jason Oke of Oxford University noted that increased diagnostic scrutiny could be detecting indolent cancers that might never have caused harm. However, researchers agree the overall trend warrants serious investigation into both genuine increases in disease and changes in screening practices.

Final Thoughts

Cancer among under-50s remains rare, with most diagnoses still occurring after age 60. Yet the rising rates across seven cancer types signal a shift that demands urgent research into lifestyle factors and screening changes. Investors and policymakers should monitor outcomes from the PROSPECT-UK trial and similar studies.

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