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Doctor insights on: Sigmoidoscopy Sigmoidoscope Proctoscope

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Difference between proctoscope and sigmoidoscope?

About 40 cm: Proctoscope is a rigid scope 25 cm long, and a sigmoidoscope is flexible and about 65 cm in length. ...Read more

Dr. John Lappas
532 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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Will i be sedated for a rigid sigmoidoscopy? What is a rigid sigmoidoscopy?

Will i be sedated for a rigid sigmoidoscopy? What is a rigid sigmoidoscopy?

Usually no sedation: Rigid sigmoidoscopy is a short, straight scope that is used to examine only the rectum and lower part of the sigmoid colon. This exam usually only takes a couple of minutes and is typically done in the office without sedation. ...Read more

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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

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Had sigmoidoscopy for months of bright red rectal bleeding. Haven't had bleeding for two years now but am worried still. No other symptoms. ?

Had sigmoidoscopy for months of bright red rectal bleeding. Haven't had bleeding for two years now but am worried still. No other symptoms. ?

What was found?: Please clarify--you are not bleeding now, and you were reassured by a negative exam two years ago. What was found then? Is there risk of inflammatory bowel disease? Happy to help if we understand your concerns. ...Read more

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How can I find a GI doc in MA that uses a rigid proctoscope? Can not do flexible because of allergy & clean out. Problem low rectal/anal area.

The clean-out for...: ...a rigid sigmoidoscopy is the same as for a flexible sigmoidoscopy. Not sure what you gain by insisting on a more limited, more uncomfortable, more risky rigid exam. Also, what "allergy" concerns you here? Perhaps we can help if we understand better your concern(s). ...Read more

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Does a sigmoidoscopy detect bowel cancer? I've had blood and mucus and sigmoidoscopy was clear?

Sigmoidoscopy: A sigmoidoscope only examines the lower portion of your left colon. To completely evaluate the colon, a colonoscopy would need to be performed. ...Read more

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Can endometriosis of the bowel show up as a small patch of inflamation during a sigmoidoscopy? Biopsy couldn't determine ibd

Can endometriosis of the bowel show up as a small patch of inflamation during a sigmoidoscopy? Biopsy couldn't determine ibd

YEs: Yes it can but only if it has invaded from the outside of the bowel to the inside. It is worth seeing a specialist about endometriosis to figure out what is going on. You definitely need some type of treatment if you have endometriosis and if it is that significant. ...Read more

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Is the sigmoidoscopy a risky thing to do?

Is the sigmoidoscopy a risky thing to do?

Not generally: Flexible sig: getting cleaned out by enemas, having a flexible, lit up tube inserted into the rectum, and advanced (steered), under direct vision (video chip inside the scope) from rectum to sigmoid, and descending colon; looks at last 1.5 feet (approx) of intestine.Stops at the turn under the left ribs. No sedation usually, can do biopsy; slight risk of bleed, perforation (1 in several thousand. ...Read more

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What can a sigmoidoscopy diagnose?

What can a sigmoidoscopy diagnose?

It examines : The rectum and the sigmoid colon. It can be done in office without any sedation. It can diagnose diseases such as proctitis, colitis, look for polyps in the distal colon amd rectum, and also evaluate hemorrhoids. There are several other uses but the above mentioned are more common. ...Read more

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Dr. Kristi Moffat
125 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