Data from NHS England reveal a notable increase in early onset cancers among people under 50, highlighting an emerging public health concern. Between 2019 and 2023, the incidence of breast cancer in this age group rose from 42 to 47.5 cases per 100,000 individuals. In addition, early onset pancreatic and liver cancers also showed upward trends.
Similar patterns have been observed internationally. In the United States, cancer incidence rates among younger adults have climbed significantly since 2000. Kidney cancer more than doubled, increasing from 2.5 cases per 100,000 people to 5.3 in 2023. Rates of bowel, uterine, and pancreatic cancers each rose by over 50%, while breast cancer incidence grew by approximately 20%. Researchers in the Netherlands reported substantial increases in early onset bowel, kidney, liver, and cervical cancers. Conversely, lung cancer rates among under-50s have declined in all three countries, a trend attributed to reductions in smoking prevalence.
Experts point to lifestyle and environmental factors as possible contributors to this rise. Dr. Giota Mitrou, executive director of research and policy at the World Cancer Research Fund (WCRF), emphasized the importance of addressing these emerging trends. “While cancer remains more prevalent in older adults, the increasing incidence among younger people demands serious attention in research and prevention efforts,” she said.
The WCRF identifies modifiable risk factors such as obesity, unhealthy diets, physical inactivity, alcohol use, smoking, and exposure to environmental pollutants—including water and air contaminants, chemicals, and plastics—as potential drivers of these patterns. Approximately 40% of cancers are linked to these risk factors. However, improved awareness of cancer symptoms could partially explain the rise in diagnoses among younger populations, as individuals seek medical evaluation earlier.
Dr. Vanessa Gordon-Dseagu, the WCRF’s research translation manager, acknowledged that while the precise causes remain unclear, lifestyle-related risks appear to play a significant role. She also noted that heightened public awareness is encouraging earlier detection but does not fully account for the observed increases. “More research is needed to understand the underlying reasons behind the growth in early onset cancers,” Dr. Gordon-Dseagu stated.
In response to these trends, King’s College London announced a major study funded by Cancer Research UK involving 250,000 participants. The initiative aims to investigate the rising incidence of bowel cancer among younger adults by evaluating the interplay between worsening risk factors and improved detection methods.
The UK Department of Health and Social Care underscored its commitment to early diagnosis within its national cancer strategy. Officials highlighted investments in diagnostic technologies, expanded genetic testing, and targeted research into less common and more aggressive cancers. The government aims for 75% of cancer patients to be cancer-free or living well with the condition by 2035. A newly formed National Cancer Board now includes a representative for young people, acknowledging the profound impact of cancer diagnosed at earlier stages of life.