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Doctor insights on: Rectal Bleeding After Colonoscopy

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What can cause rectal bleeding if the colonoscopies comes back normal?

What can cause rectal bleeding if the colonoscopies comes back normal?

Colonoscopy: Will look for tumors or polyps in the colon. Most common cause of bleeding may be from hemorrhoids or anal fissure that may not be seen well on colonoscopy. Less common causes of colon bleeding could be vascular malformation or diverticulosis which can bleed intwrmittently & would not be seen at colonoscooy unless there was active bleeding at the time of the procedure. ...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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Is a colonoscopy needed for chronic rectal bleeding?

Is a colonoscopy needed for chronic rectal bleeding?

Yes, if you want to : Find out the origin of the bleeding. Most common cause of rectal bleeding is hemorrhoids, but other causes are possible, such as cancer, ulcerative colitis, crohn's disease, diverticulosis, or angiodysplasia. ...Read more

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Will i need colonoscopy if I have chronic rectal bleeding?

Will i need colonoscopy if I have chronic rectal bleeding?

Yes : In order to determine the source of bleeding and to stop it if possible. It could be bleeding from a cancer, benign tumor, ulcerative colitis. These are all potentially serious problems. Get colonoscopy if your doctor recommends it. ...Read more

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What could cause rectal bleeding but still have a normal colonoscopy and egd?

What could cause rectal bleeding but still have a normal colonoscopy and egd?

Small bowel and anus: When a work up involves an EGD and colonoscopy, it misses the small intestines - a capsule endoscopy or bleeding scan would be needed to assess bleeding sites in the small intestines. As well, a colonoscopy may miss the otherwise obvious hemorrhoids or anal fissures which could bleed from the anus. ...Read more

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Heavy rectal bleeding for almost 3 weeks 3-4 x a day. Colonoscopy 10/28/13 no polyps etc. Any idea? I'm beyond worried

Heavy rectal bleeding for almost 3 weeks 3-4 x a day. Colonoscopy 10/28/13 no polyps etc. Any idea? I'm beyond worried

You are young: It is hard to imagine what could be bleeding in your colon, at your age and not seen by colonoscopy. The only thing i could think of is av malformation since they can't be seen once decompressed from bleeding. You have to discuss it further with your doctor and your gastroenterologist as to what it could be. Good luck. ...Read more

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I had a colonoscopy 2 months ago. They removed a benign polyp but the last 3 weeks i have had a lot of rectal bleeding. Could this be from the surgery?

I had a colonoscopy 2 months ago. They removed a benign polyp but the last 3 weeks i have had a lot of rectal bleeding. Could this be from the surgery?

Rectal bleeding. : It would be quite unusual for you to start bleeding five weeks after a colonoscopy with biopsy. If it's red blood, this could be a hemorrhoid or anal fissure, especially if nothing other than that benign polyp was found at colonoscopy. ...Read more

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My 32 y/o son has red rectal bleeding and nausea. Doc has him at home this week waiting for a colonoscopy next monday. Is this safe?

My 32 y/o son has red rectal bleeding and nausea. Doc has him at home this week waiting for a colonoscopy next monday.  Is this safe?

I belive so: See to do colonoscopy you have to cleanse the colon, that take some time, so you could see the colon better, if his vital signs are okay I do see any problems. Hope he feel better. ...Read more

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Everytime i walk briskly on a treadmill, I have anal/rectal bleeding. I had colonoscopies and a fistula removed, this is still happening. Why? Thanks.

Everytime i walk briskly on a treadmill, I have anal/rectal bleeding. I had colonoscopies and a fistula removed, this is still happening. Why?
Thanks.

Consider hemorrhoids: I would suspect you have hemorrhoids and that vigorous activity is irritating the area. Take a stool softener, drink plenty of liquids, and if the bleeding continues it would be important to see a GI doctor and have a colonoscopy. Cancer, diverticulosis, and inflammatory bowel disease are other possibilities. ...Read more

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Dr. Jason Campbell
169 doctors shared insights

Rectal Bleeding (Definition)

Rectal bleeding is a symptom in which a person has blood coming out of his anus, either during bowel movements (when he poops) and/or at other times. The bleeding can be from ...Read more


Dr. Alan Patterson
2,219 doctors shared insights

Bleeding (Definition)

Bleeding is a term describing the loss of blood. It can occur inside the body due to damage to blood vessels or organs or outside the body during menstruation or when there is a ...Read more