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Doctor insights on: Sigmoidoscopy Colonoscopy

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Please tell me about flexible sigmoidoscopy and colonoscopy ?

Please tell me about flexible sigmoidoscopy and colonoscopy ?

Two separate procedu: These are two separate procedures for checking the large intestine. Sigmoidoscope is shorter and can look inside about one half of the( lower) colon. Colonoscopy is done with a colonoscope, which is much longer and can go up all the way into the entire colon and check it out for any internal disease of the colon like cancer or polyps. ...Read more

Dr. John Lappas
544 doctors shared insights

Sigmoidoscopy (Definition)

Sigmoidoscopy is the use of a flexible fiberoptic camera or specially designed scope to examine the inside of the colon. Because the procedure only examines the left side of the colon (in an area called the sigmoid), it is termed sigmoidoscopy. This is to differentiate it from a colonoscopy, where the entire right and left side of the colon is examined. A sigmoidoscopy ...Read more


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Blood mucus frequent loose stools. Had sigmoidoscopy and colonoscopy with adequate view. Should I still be worried and what else can cause this?

Blood mucus frequent loose stools. Had sigmoidoscopy and colonoscopy with adequate view. Should I still be worried and what else can cause this?

Colonoscopy: The best person to determine what is going on is the colonoscopist. Have they not discussed the results of this with you. Usually they will biopsy randomly if there are no definitive points of abnormal mucosa visible. Call and talk to your GI doctor. Best wishes. ...Read more

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What is it like to have a flexible sigmoidoscopy or a colonoscopy ?

Depends!: Very few physicians perform sigmoidoscopy anymore (only checks half the colon and no sedation!). Colonoscopy is usually done with sedation or anesthesia. The procedure itself is usually not uncomfortable. The cleaning out preparation can be arduous. Colonoscopy is 50 times more life saving than a mammogram! ...Read more

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Can you tell me about having a flexible sigmoidoscopy or a colonoscopy ?

Both look at: The lower colon but the colonoscopy looks at the entire colon. Preps are different, colonoscopy usually requires sedation and thus someone to drive home, but flex sig can be done in office without sedation and you can resume normal activity right away. Indication are different for each so it depends on the reason you are having the exam in the first place. ...Read more

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What are the differences between sigmoidoscopy prep and colonoscopy prep?

It is similar: Both procedures require complete cleaning up of the Colorectal area. So the prep is not any different. ...Read more

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I am refusing to have a colonoscopy or sigmoidoscopy unless it becomes my very last resort. What test options can I insist on in UK please possibleibs?

I am sorry: but I don't practice in the UK and I don't know health care policies in Britain. I don't know if Health Tap has any providers in the United Kingdom. All the physicians that I know in Health Tap are based in the United States. ...Read more

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Can many months of cdif & tx make your colon more likely to perforate from colonoscopy or sigmoidoscopy after its cured (test ok & no sx)?

Can many months of cdif & tx make your colon more likely to perforate from colonoscopy or sigmoidoscopy after its cured (test ok & no sx)?

Depends : An inflamed colon is at higher risk of complications during colonoscopy as it tends to be thicker, more blood flow, and less flexible. If your colon has recovered from for C difficle colitis then your risk is back to normal. If you have been chronically ill and you are malnourished as a result you will have a slightly increased risk as well as a decreased ability to recover from a complication. ...Read more

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How do a colonoscopy and a sigmoidoscopy differ?

Longer test: A sigmoidoscopy only sees part of the colon. The traditional sigmoidoscopy was 60 centimeters and saw the sigmoid and descending colon. A colonoscope is 120-160cm and should visualize the entire colon. Usually the sigmoidoscopy is done unsedated while the colonoscopy is done with sedation. ...Read more

Dr. Kristi Moffat
130 doctors shared insights

Proctosigmoidoscopy (Definition)

Proctosigmoidoscopy is an examination of the rectum and sigmoid colon (just above the rectum) using a narrow, rigid scope with a built-in light. A small amount of air is usually introduced to distend the bowel, allowing for a better view. Generally, a limited prep is helpful, but not always necessary. ...Read more


Dr. Charles Cattano
2,023 doctors shared insights

Colonoscopy (Definition)

Colonoscopy is the procedure of using a long flexible camera to visualize the entire colon from the inside with the option to take pictures, video, perform biopsies, remove polyps, etc. Generally people are sedated and do ...Read more