Colorectal Cancer Screening

KEY POINTS

  • Tests are used to screen for different types of cancer.
  • Studies show that some screening tests for colorectal cancer help find cancer at an early stage and may decrease the number of deaths from the disease.
  • Five types of tests are used to screen for colorectal cancer:
  • Fecal occult blood test
  • Sigmoidoscopy
  • Colonoscopy
  • Virtual colonoscopy
  • DNA stool test
  • Studies have shown that screening for colorectal cancer using digital rectal exam does not decrease the number of deaths from the disease.

Tests are used to screen for different types of cancer.

Some screening tests are used because they have been shown to be helpful both in finding cancers early and decreasing the chance of dying from these cancers. Other tests are used because they have been shown to find cancer in some people; however, it has not been proven in clinical trials that use of these tests will decrease the risk of dying from cancer.

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