Actor James Van Der Beek’s death on February 11, 2026, from colorectal cancer at age 48 has brought renewed attention to the rising incidence of the disease in younger adults, with cases now appearing in individuals as young as 20.
The increasing rates of early-onset colorectal cancer are prompting researchers to investigate a complex interplay of factors, according to experts at the University of Colorado Anschutz Medical Campus. Even as a single cause remains elusive, lifestyle elements and the gut microbiome are emerging as key areas of focus.
“Researchers have identified a number of factors associated with increasing numbers of young people developing colorectal cancer, but there is no one clear answer that explains this trend,” explained Christopher Lieu, a gastrointestinal oncologist, and Andrea Dwyer, a cancer researcher, in a joint statement. Lifestyle factors, including diets high in ultra-processed foods and alcohol consumption, coupled with a lack of physical activity, have been correlated with the disease, though researchers emphasize these are associations, not proven causes.
A significant area of investigation centers on the gut microbiome – the ecosystem of microorganisms within the digestive tract. Disruptions in the balance of these microbes, known as dysbiosis, can lead to inflammation and potentially increase cancer risk.
Dietary habits also play a crucial role. High consumption of red and processed meats, alongside insufficient fiber intake, is linked to increased risk. Even moderate alcohol consumption – less than one drink daily – can contribute to cancer development. Smoking, obesity, and a sedentary lifestyle further exacerbate the risk.
Colorectal cancer is now the leading cause of cancer-related deaths in individuals under 50, according to data released in January 2026 by the CU Anschutz Cancer Center. The center highlighted the case of Van Der Beek, who publicly announced his diagnosis in 2024.
Survival rates for young people diagnosed with colorectal cancer are a subject of ongoing research. While early detection – when the cancer is localized – can yield five-year survival rates between 80% and 90%, survival rates drop to 10% to 15% when the cancer has metastasized. One study indicated that young patients with metastatic disease may have slightly lower survival rates compared to those aged 50 or older.
Common early symptoms of colorectal cancer include blood in the stool, abdominal pain, and changes in bowel habits. Unexplained anemia can also be a warning sign. Experts stress that these symptoms do not automatically indicate cancer but warrant medical evaluation, potentially including a colonoscopy.
Screening recommendations vary based on individual risk factors. Individuals with an average risk – no personal or significant family history of colorectal cancer, hereditary cancer syndromes, precancerous polyps, or inflammatory bowel disease – should begin screening at age 45, utilizing stool tests or imaging scans. Those with a higher risk, due to family history or other factors, may require earlier and more frequent colonoscopies.
Reducing risk involves proactive lifestyle changes. Regular physical activity, a diet rich in fruits, vegetables, and fiber, and maintaining a healthy weight are all beneficial. Limiting or eliminating alcohol and tobacco use is also crucial. Open communication with healthcare providers about personal and family history is essential to determine the appropriate screening schedule.
