# Rising colorectal cancer in younger populations > Live situation record from CLSTR: https://clstr.news/situations/rising-colorectal-cancer-in-younger-populations > Updated: 2026-09-13T09:03:55.000Z. Sources: 6. Developments: 2. Recent data indicates a rising trend of colorectal cancer diagnoses and mortality among younger populations globally. In the United States, colorectal cancer has become the leading cause of cancer deaths for Americans under age 50, with rates increasing by 1.1% annually since 2005. Researchers are investigating lifestyle factors such as obesity, sedentary habits, and diet, noting that tumor patterns in younger patients do not align with known inherited conditions. Similarly, in Serbia, colorectal cancer has emerged as the most frequent malignancy in terms of new diagnoses, accounting for approximately 14.7% of all registered malignancies. It ranks as the second leading cause of cancer mortality in the country, following lung cancer. Medical experts in Serbia have observed a concerning increase in diagnoses for patients under age 50, attributing the trend to modern lifestyles and improved awareness, while warning that early symptoms are frequently mistaken for minor ailments. ## Timeline ### 2026-09-13: Colorectal cancer rises among younger populations in Serbia Colorectal cancer is now the most common malignancy in Serbia, with a rising trend in patients under 50 and significant mortality rates. 3 sources. https://clstr.news/cluster/colorectal-cancer-rises-among-younger-populations-in-serbia ### 2026-08-21: Colorectal cancer becomes leading cause of cancer deaths in young Americans Colorectal cancer is now the leading cause of cancer deaths in Americans under 50, defying a general downward trend in cancer mortality for that age group. 3 sources. https://clstr.news/cluster/colorectal-cancer-becomes-leading-cause-of-cancer-deaths-in-young-americans --- Cite as: Rising colorectal cancer in younger populations. CLSTR, https://clstr.news/situations/rising-colorectal-cancer-in-younger-populations