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Doctor insights on: Does A Colonoscopy Check The Small Intestines

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Does a colonoscopy check the small intestine as well?

Does a colonoscopy check the small intestine as well?

Not usually: The colonoscope can reach the last part of the small bowel but only for a few inches. ...Read more

Intestine (Definition)

The gastrointestinal tract starts at the mouth, travel down the tunnel (esophagus), which connects to the stomach, which then empties into the duodenum, jejunum, and ileum---the three parts of the small intestine (@25 feet). This empties into the colon or large intestine (about 5 feet), which then becomes the sigmoid colon, rectum and out the anus. So, every morsel eaten ...Read more


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When you have a colonoscopy does it include the small intestine?

When you have a colonoscopy does it include the small intestine?

No: The colon is the last 5 feet of the 20 foot long digestive tract. The colonoscope can be advanced to "peek" into the last few inches of the small intestine sometimes, but not routine. ...Read more

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What test looks at the small intestine? Colonoscopy can't see that far, right?

What test looks at the small intestine? Colonoscopy can't see that far, right?

Capsule endoscopy: Currently I use a small bowel follow through, ct enterpgraphy and video capsule endoscopy. If there is any positive finding, then a double balloon endoscopy or spirus endoscopy can be used to reach the lesion. ...Read more

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I had MRI of small intestines that had shown no abnormalities. Is there any point to have a colonoscopy next? Would that show anything different? Ty

I had MRI of small intestines that had shown no abnormalities.  Is there any point to have a colonoscopy next? Would that show anything different? Ty

Possibly: I see that you have abdominal bloating. There can be many causes for that. An abdominal MRI gets a good look at the ovaries and other abdominal organs, but it is not good at seeing the insides of your intestines. If you have not had a colonoscopy, this may be a test your doctor orders. It looks at the inside of your large intestine and gives different information than the MRI. Hope that helps! ...Read more

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I had a colonoscopy done today and doc said he had a hard time getting to my small intestines and had to use forceps, why would've it been hard?

I had a colonoscopy done today and doc said he had a hard time getting to my small intestines and had to use forceps, why would've it been hard?

Anatomy : sometimes if's super easy to get through the ileocecal valve and sometimes harder, especially in thin women. he probably used the forceps to pull himself in - absolutely nothing to worry about. ...Read more

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What causes hemorrhoids in the last part of the small intestine? I got a colonoscopy already

What causes hemorrhoids in the last part of the small intestine? I got a colonoscopy already

Hemorrhoids do not: Exist in the small bowel. They are only present at the anus, both internal and external. If something was found in the terminal ileum as you describe they are not hemorrhoids. Ask your doctor for clarification of the findings. ...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

Dr. Charles Cattano
1,965 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


Bowel (Definition)

The bowel is the intestinal tract in the body. The small intestine ...Read more