Diagnostic Procedure
sigmoidoscopy Audio
sig·moid·os·co·py [ sig-moi-dos-kuh-pee ]
Subclass of:
colonoscopy
Definitions related to sigmoidoscopy (procedure):
  • (sigmoidoscopy) Endoscopic examination of the luminal surface of the sigmoid colon.
    NCI
    U.S. National Cancer Institute, 2021
  • (sigmoidoscopy) Endoscopic examination, therapy or surgery of the sigmoid flexure.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • (sigmoidoscopy) Internal examination of the rectum and sigmoid colon using a flexible viewing tube inserted through the anus.
    Harvard Dictionary of Health Terms
    Harvard Medical Publishing, 2011
  • (proctosigmoidoscopy) Examination of the lower colon using a sigmoidoscope, inserted into the rectum. A sigmoidoscope is a thin, tube-like instrument with a light and a lens for viewing. It may also have a tool to remove tissue to be checked under a microscope for signs of disease.
    NCI Dictionary of Cancer Terms
    U.S. National Cancer Institute, 2021
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.