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  1. Colorectal cancer - Wikipedia

    Colorectal cancer, also known as bowel cancer, colon cancer, or rectal cancer, is the development of cancer from the colon or rectum (parts of the large intestine). It is the consequence of uncontrolled …

  2. What Is Colorectal Cancer? | How Does Colorectal Cancer Start?

    Colorectal cancer is a cancer that starts in the colon or the rectum. Learn about the types of colorectal cancer, how they start, and where they grow.

  3. Colorectal Cancer Is Now the Leading Cause of Cancer ... - Health

    Jan 22, 2026 · A new report found that colorectal cancer causes more deaths than any other type of cancer, including breast and lung cancers. Experts explain why, and what it means for you.

  4. What is Colorectal Cancer? Symptoms, Risk Factors ...

    Colorectal cancer is a cancer that begins in the colon or rectum. Colorectal cancers are the third most common type of cancer in the United States. More than 145,000 people in this country are diagnosed …

  5. Colorectal Cancer—Patient Version - NCI

    Explore the links on this page to learn more about colorectal cancer prevention, screening, treatment, statistics, research, clinical trials, and more. Clinical advances, research findings, and NCI programs …

  6. Colorectal Cancer Basics | Colorectal Cancer | CDC

    Jun 12, 2024 · When cancer starts in the colon or rectum, it is called colorectal cancer. Sometimes it is called colon cancer, for short. The colon is the large intestine or large bowel. The rectum is the …

  7. Mayo Clinic Q and A: Understanding colorectal cancer

    Mar 26, 2025 · ANSWER: The term colorectal cancer combines colon and rectal cancer, two parts of the intestine. The first part of the large intestine is called the colon, and the last part refers to the rectum. …