Sigmoidoscopy (Anoscopy, Proctoscopy)

Anoscopy

Usually, no preparation is needed for an anoscopy.

Proctoscopy and sigmoidoscopy

Test preparation for a proctoscopy and Reference sigmoidoscopy Opens New Window may be similar. Before the test:

• Talk with your doctor to find out if you need to stop taking some medicines, such as warfarin, before the test.
• Tell your doctor if you have been diagnosed with Reference peritonitis Opens New Window, Reference diverticulitis Opens New Window, or Reference toxic megacolon Opens New Window or if you have had recent bowel surgery.

The preparation for these tests usually involves a thorough cleaning of the lower colon, because it must be completely clear of stool (feces). Even a small amount of fecal material can affect the accuracy of the test.

• You may be instructed to follow a Reference liquid diet Opens New Window for 1 to 2 days before the test.
• You may be instructed to not eat for up to 12 hours before the test.
• You may need to have two enemas before the examination.
• You may not need special preparation, especially if you have watery or bloody diarrhea.

Talk to your doctor about any concerns you have regarding the need for this test, its risks, how it will be done, or what the results may mean. To help you understand the importance of this test, fill out the medical test information form (What is a Reference PDF Opens New Window document?).

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This information does not replace the advice of a doctor. Healthwise, Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Reference Terms of Use. Reference How this information was developed to help you make better health decisions.