Skip to content

    Colorectal Cancer Health Center

    Font Size

    Colon Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI] - General Information About Colon Cancer

    Cancer of the colon is a highly treatable and often curable disease when localized to the bowel. Surgery is the primary form of treatment and results in cure in approximately 50% of the patients. Recurrence following surgery is a major problem and is often the ultimate cause of death.

    Incidence and Mortality

    Did You Know?

    Under the Affordable Care Act, many health insurance plans will cover preventive care services, including checkups, vaccinations and screening tests, at no cost to you. Learn more.

    Health Insurance Center

    Note: Estimated new cases and deaths from colon cancer in the United States in 2014:[1]

    • New cases: 96,830 (colon cancer only).
    • Deaths: 50,310 (colon and rectal cancers combined).

    Gastrointestinal stromal tumors can occur in the colon. (Refer to the PDQ summary on Gastrointestinal Stromal Tumors Treatment for more information.)


    Anatomy of the lower gastrointestinal system.

    Risk Factors

    Groups that have a high incidence of colorectal cancer include those with hereditary conditions. Together, these groups account for 10% to 15% of colorectal cancers. These groups include the following:

    • Familial polyposis.
    • Hereditary nonpolyposis colon cancer (HNPCC) or Lynch syndrome variants I and II.
    • A personal history of ulcerative colitis or Crohn colitis.[2,3]

    More common conditions with an increased risk include the following:

    • A personal history of colorectal cancer or adenomas.
    • First-degree family history of colorectal cancer or adenomas.
    • A personal history of ovarian, endometrial, or breast cancer.[4,5]

    These high-risk groups account for only 23% of all colorectal cancers. Limiting screening or early cancer detection to only these high-risk groups would miss the majority of colorectal cancers.[6] (Refer to the PDQ summaries on Colorectal Cancer Screening and Colorectal Cancer Prevention for more information.)


    Because of the frequency of the disease, ability to identify high-risk groups, slow growth of primary lesions, better survival of patients with early-stage lesions, and relative simplicity and accuracy of screening tests, screening for colon cancer should be a part of routine care for all adults aged 50 years and older, especially for those with first-degree relatives with colorectal cancer. (Refer to the PDQ summary on Colorectal Cancer Screening for more information.)

    Prognostic Factors

    The prognosis of patients with colon cancer is clearly related to the following:

    • The degree of penetration of the tumor through the bowel wall.
    • The presence or absence of nodal involvement.
    • The presence or absence of distant metastases.
    1 | 2 | 3 | 4
    1 | 2 | 3 | 4
    Next Article:

    Today on WebMD

    Colorectal cancer cells
    The right diagnosis is the most important factor.
    man with a doctor
    Our health check will steer you in the right direction.
    sauteed cherry tomatoes
    Fight cancer one plate at a time.
    bladder cancer x-ray
    Do you know the warning signs?
    Colon vs Rectal Cancer
    New Colorectal Treatments
    can lack of sleep affect your immune system
    Cancer Facts Quiz
    Virtual Colonoscopy
    Picture of the Colon
    Vitamin D