This test can be done in a doctor’s office and does not need anesthesia or sedation (medicine that makes you sleepy).

For colorectal cancer screening, it is usually performed with annual FIT or FOBT.

• Only the final two feet of the colon’s six feet are examined.

  
  

• If the doctor sees any polyps during a sigmoidoscopy, he or she will remove them right away, during the procedure.

  
  

• You will not be able to feel a polyp being removed and removing them will not impact your recovery time.

  
  

• Removing polyps during a sigmoidoscopy could stop precancerous polyps from turning into colon cancer.

  
  

• The procedure is also able to diagnose any cancers that have already begun to grow in the colon.

  
  

Introduction of the flexible tube may be somewhat uncomfortable, and some cramping may happen during the test.

You will need to take a couple of cleansing enemas before the test and/or a gentle oral prep.

You may be given medicine to make you relaxed and sleepy during this test.

After the test, there may be some mild belly-gas pains.

If a polyp or abnormality is found, you may need a colonoscopy at a later date to examine the remaining four feet of colon.

How often do you need a flexible sigmoidoscopy?

• Every five years if annual stool tests for blood are negative.

How do you get ready for a flexible sigmoidoscopy?

• How do I prepare for a Flexible Sigmoidoscopy? A member of your care team will discuss preparation instructions with you.

  
  

• For your safety, it is important to follow the pre-procedure instructions you receive. Review them in advance to provide enough time for your doctor to answer any questions.

  
  

https://patient.gastro.org/crcscreening/#flexsig