Fecal Blood Testing (FOBT)

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Fecal Occult Blood Testing (FOBT)

For Colorectal Cancer Screening

Guidelines from the American Cancer Society, the US Preventive Services Taskforce, and others recommend high-sensitivity fecal occult blood tests (FOBT) as on option for colorectal cancer screening.

  • Colorectal cancer screening with FOBT has been shown to decrease both incidence and mortality in randomized controlled trials.
  • High-sensitivity FOBT detects colorectal cancer at relatively high rates.
  • Modeling studies suggest that the years of life saved through a high-quality FOBT screening program are essentially the same as with a high-quality colonoscopy-based screening program.
  • Access to colonoscopy and other invasive tests may be limited or non-existent for many patients. In addition, some adults prefer less invasive test.


All of these elements make FOBT a reasonable choice for patients.

Recent advances in stool blood screening include the emergence of new tests and improved understanding of the impact of quality factors on testing outcomes.