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Doctor insights on: Show Me How A Colonoscopy Is Performed

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Gastro recommended CT and colonscopy for mild abdominal pain/gas. 23 yrs old. If CT scan shows nothing, is colonoscopy necessary? no bloody stools

Gastro recommended CT and colonscopy for mild abdominal pain/gas. 23 yrs old. If CT scan shows nothing, is colonoscopy necessary? no bloody stools

Options available: CT scan of the abdomen may be indicated but not for mild pain alone. If the symptoms are progressive and there is concern for Cancer(unlikely in your age group), then only I would consider doing a CT. Similarly Colonoscopy is not indicated because of pain alone.If there is bowel irregularity or blood in stool Colonoscopy is reasonable to do. In your case I would watch /monitor for 4-6 weeks, then ...Read more

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Dr. Charles Cattano
1,990 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


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Will a barium test show all of the stool in the small and large intestines? Is it typical to have one performed weeks before the first colonoscopy?

Will a barium test show all of the stool in the small and large intestines? Is it typical to have one performed weeks before the first colonoscopy?

No and no: Barium is a contrast agent which helps the visualization of the bowel during X-ray studies. When given as an enema, it helps for large bowel(colon) examination.Orally, it can help for small bowel evaluation. Neither route is useful for imaging BOTH large and small bowel.If the patient has taken proper bowel preparation measures, there is in fact no stool in the bowel to degrade the visualization. ...Read more

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How is a colonoscopy performed?

How is a colonoscopy performed?

Camera on a snake: A video camera on the end of a flexible stalk, not unlike a snake, is inserted through the rectum while you are asleep. You don't feel a thing, you won't remember it, and the only bed part is the prep. ...Read more

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What if the colonoscopy shows something abnormal?

What if the colonoscopy shows something abnormal?

Diagnosis/treatment: At colonoscopy most visible abnormalities are either definitively diagnosed via sampling (biopsy) or removed completely also for diagnosis that includes the treatment. Some findings, eg cancer, need definitive treatment via other modes (for example but not limited to surgery). ...Read more

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Why does colonoscopy test show a blockage?

Cancer/ inflammation: Both cancer and noncancerous inflammatory conditions like diverticulitis can cause obstruction of the colon and symptoms associated with that obstruction. During colonoscopy, the obstruction will not allow the colon to distend properly allowing the operator to visualize the problem and biopsy any abnormality. ...Read more

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If colonoscopy and endoscopy show nothing what could it be?

What symptoms?: Impossible to say without knowing what signs and symptoms you were having that prompt getting the scopes. ...Read more

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If I'm not in a flare will the colonoscopy still show signs of Crohn's disease?

If I'm not in a flare will the colonoscopy still show signs of Crohn's disease?

Usually No!: Like other medical tests, only what is present at the moment, within the limits of accuracy of the test, may be revealed. Additionally, the range of what is considered "normal" is huge. Eg for most quantitative measurements the central 96% of the range (compared to a small & unspecified group of people measured at some time in the past) is considered "normal". Studying the issues yourself is Best ...Read more

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Can i tell me if I am being tested for Crohn's and i are feeling well before a colonoscopy will it still show up?

Yes in theory: In theory, if you truly have Crohn's disease and you happen to feel well on the day of the procedure, it will definitely show up on pathology. That is because Crohn's disease is CHRONIC inflammation. It can't disappear over night. Even if you are on the right treatment and are starting to feel better it takes weeks to months for all the inflammation to resolve. Good luck! ...Read more

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