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Doctor insights on: Sigmoidoscopy Vs Colonoscopy Procedure

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I am considering a screening sigmoidoscopy over that of a colonoscopy due to more preparation and procedural involvement. No family history. Wise?

I am considering a screening sigmoidoscopy over that of a colonoscopy due to more preparation and procedural involvement. No family history. Wise?

Colonoscopy: I would suggest a colonoscopy if you are able, as it is a more complete screening. If normal you will not need another for 10 years. The sigmoidoscopy only looks at the lower portion of your colon. ...Read more

Dr. John Lappas
549 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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How do a colonoscopy and a sigmoidoscopy differ?

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

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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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Why is a flexible sigmoidoscopy done instead of a colonoscopy?

Why is a flexible sigmoidoscopy done instead of a colonoscopy?

Screening: A flex-sig is usually done in the office as a preliminary screening procedure. It is also useful as a follow-up if you have had polyps removed in the lower colon. Is is also useful to re-evaluate colitis and you response to treatment. ...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?

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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How does the cost of a flexible sigmoidoscopy compare to that of a colonoscopy?

Cost: This is variable. Would contact the facility or provider to obtain more information about the anticipated cost. ...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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What’s the difference between a colonoscopy and a sigmoidoscopy? I had a sigmoidoscopy that was negative. Now my doctor wants to do a colonoscopy. Why? What’s the difference?

Length: Sigmoidoscopy only allows for part of the colon to be visualized and generally does not involve sedation medications. Colonoscopy is intended to visualize the entire colon and often requires sedation medication. ...Read more

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Does a sigmoidoscopy hurt? My doctor told me I won’t get any sedation for my sigmoidoscopy, but my friend had sedation for his colonoscopy. Does that mean a sigmoidscopy hurts less?

Less uncomfortable: Different patients have different perceptions of pain. That being said, a sigmoidoscopy is generally less uncomfortable because they insert the instrument not nearly as far as with a colonoscopy. Consequently, they don't have to expand the inside of your colon with as much air during sigmoidoscopy which is generally the uncomfortable part. Sigmoidoscopy is commonly performed without sedation. ...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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Would a sigmoidoscopy show details or info like a colonoscopy and a endoscopy? Still have bad stomach symptoms. Got a colon and endo done still pain

Would a sigmoidoscopy show details or info like a colonoscopy and a endoscopy? Still have bad stomach symptoms. Got a colon and endo done still pain

Scopy: Of the colon and specially the sigmoid colon and the anus is generally done to rule out lesions of the lower colon specially if there is unexplained abdominal pain or rectal bleeding or change in your bowel movements
to rule out lesions like malignancy
I am sure you physician is worried about the status of your colon and will then treat your abdominal pain ...Read more

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Blood diareah mucus in stool. Had sigmoidoscopy and colonoscopy with adequate view. All normal other than internal piles. Should I still worry?

Don't think so.: Normal Sigmoidoscopy / Colonoscopy essentially rules out any bad disease of your colon. Sounds like the problem is indeed your internal hemorrhoids. Treat these and see what happens. ...Read more

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Can the cecum be seen during a colonoscopy? Or is it through a sigmoidoscopy? Can cancer of the cecum be detected through radiology tests like ct/mri?

Can the cecum be seen during a colonoscopy? Or is it through a sigmoidoscopy? Can cancer of the cecum be detected through radiology tests like ct/mri?

Yes-No-Maybe: Colonoscopy evaluates the entire large intestine, from cecum to rectum. Flexible sigmoidoscopy only goes as far as the left side of the colon, nowhere near the cecum. Routine ct scanning may identify a (large) cecal tumor but is much less sensitive than a colonoscopy; ct colonography is almost as sensitive as a colonoscopy, but is less desirable than colonoscopy since a biopsy cannot be done. ...Read more

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Is it safe to donate plasma after having a colonoscopy procedure?

No probelm: Colonoscopy should not affect your health in anyway to prevent you from doing what you want to do. ...Read more

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Why would I have been charged for 2 different anesthesiologists for a colonoscopy procedure?

Check with your doct: Are the charges for actually named physicians/anesthesiologists? Could one of them possibly be an anesthetist with a supervising anesthesiologist. It would be best to address this with the individuals who are billing you. In our practice, we typically do not use additional personnel to administer the sedation, hence no extra charges. ...Read more

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How soon after my colonoscopy (fro possible blockage) should my GI that did the procedure see me?

No way to know: There is no set time for follow up after a colonoscopy. It depends on why the procedure was done and what was found at the time. If you have any doubts you should just call your gastroenterologist. ...Read more

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My doc ordered a colonoscopy for me since I am over 50. Can anyone give me the real 411 on this procedure?

My doc ordered a colonoscopy for me since I am over 50. Can anyone give me the real 411 on this procedure?

Colonoscopy 411: The importance of colonoscopy is to screen for colo-rectal cancer, the #3 most common cause of cancer death in both men and women in america. The procedure is started by giving you some sedation to put you almost to sleep. A small camera is then inserted into your anus and snaked up your colon and photographs and (if needed) samples are collected. Not nearly as bad as it sounds. ...Read more

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Is weight gain normal after colonoscopy? I had procedure yesterday and today the scale shows I've gained 3 lbs

Is weight gain normal after colonoscopy? I had procedure yesterday and today the scale shows I've gained 3 lbs

Unlikely, but. . .: Prior to colonoscopy, one has to drink lots of icky fluids to clean out bowel. As a result, one usually loses weight. OTOH 3# weight gain in one day could be from bloating unrelated to procedure. Or more likely, use of different scales at different times of day in different amounts of clothing. Be sure to pay more attention to how your clothes fit than actual weight (using same scale at same time) ...Read more

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I have a colonoscopy in 3 days and developed a uti. Should I get treated beforehand or wait till after the procedure?

Get started with: Proper antibiotics but notify all physicians involved and they will tell you how to proceed. ...Read more

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Should the laxatives be taken one day before colonoscopy or on the same day a few hours before the start of the procedure?

Should the laxatives be taken one day before colonoscopy or on the same day a few hours before the start of the procedure?

24 Hour Prep: Your GI specialist is supposed to provide you a sheet with instructions to clean your bowel. You need to avoid any solid foods for 24 hours before the procedure. During this time you need to take laxatives till your bowel movements are entirely liquid and free of any residual fecal matter. Drink plenty of liquids during this time, to avoid dehydration. Good luck! . ...Read more

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Husband had colonoscopy this morning. Fever started approx. 6 hours after procedure. 100.8. No pain just fever. Is this normal. Fever now 99.6?

Husband had colonoscopy this morning. Fever started approx. 6 hours after procedure. 100.8. No pain just fever. Is this normal. Fever now 99.6?

Not expected: Did he have any interventions done? Sometimes with a polypectomy or biopsies there can be some focal inflammation (serositis). the fever could also be a marker of something a lot more serious like a perforation though. Keep a close eye on him, and I'd give the gastroenterologist the heads-up sooner rather than later. ...Read more

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Hemerhoids prior to colonoscopy. Procedure aggrivated them. Known management techniques not helpful. What are good and bad ideas to help manage?

Hemerhoids prior to colonoscopy. Procedure aggrivated them. Known management techniques not helpful. What are good and bad ideas to help manage?

No Butts About This!: First, I'd call the lout who did this & ask him (or her) about it. But that aside. It's hard to say without looking at it (which"he or she"may want to do).If it's not bleeding or leaking anything weird, a warm bath or soak & meticulous local cleanliness help. A stool softener helps (easier to pass the exit).A topical anesthetic will help (some are non-Rx).But if it bleeds or nothing helps, it's doc time! ...Read more

Dr. Kristi Moffat
133 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
2,047 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