The incidence of colorectal cancer in adults younger than 50 years of age has increased in the United States since 1970. A new study published early online in CANCER, a peer-reviewed journal of the American Cancer Society, found that the proportion of adults diagnosed with colorectal cancer under age 50 in the United States has continued to increase over the past decade, and younger adults are diagnosed with more advanced disease.
source https://www.lifetechnology.com/blogs/life-technology-news-blog/more-colorectal-cancer-cases-are-being-diagnosed-in-younger-patients