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Doctor insights on: Colonoscopy Worry Bright Red Blood Stool

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Red streaks of blood in stool - but colonoscopy is clear. What could it be?

Red streaks of blood in stool - but colonoscopy is clear. What could it be?

Pain?: Is there pain associated with your bowel movements? The blood could be due to an anal fissure. If there is no pain related the blood could be from a hemorrhoid. Either way it is important to discuss this with your gastrointestinal doctor to find the source of the bleeding. ...Read more

Dr. Charles Cattano
1,988 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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Normal colonoscopy but blood in stool, what's wrong?

Normal colonoscopy but blood in stool, what's wrong?

See below : The colon is so huge that sometimes the camera doesn't catch a small bleed. Colonoscopies are important to make sure you don't have inflammation in the colon and it rules out serious causes. You might have a blood vessel that bleeds on and off. Or it might be something in the anal area like a crack in the wall causing some bleeding when you wipe. Also the bleed could be from above the colon. ...Read more

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Is it normal to have blood in stool after colonoscopy?

Is it normal to have blood in stool after colonoscopy?

Sometimes: During a colonoscopy, your surgeon or gastroenterologist may have taken biospies or removed polyps. These will occasionally bleed, and result in blood in your stools. If the bleeding is associated with significant abdominal pain and cramping, notify your doctor immediately. ...Read more

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What to do if I have blood in stool but clean colonoscopy?

What to do if I have blood in stool but clean colonoscopy?

Blood in stool: If the colonoscopy is negative and the bleeding is bright red and low volume it is likely hemorrhoidal in origin. At this early stage usually an anal ointment will help symptoms. ...Read more

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Is blood in stool common after having your first colonoscopy test?

Depends on whether: A polyp was removed or biopsies were taken and even then should only be scant blood for a day or so. Anything more than that and you need to call the doctor who performed the colonoscopy promptly and inform them of this occurrence. Better to be safe. ...Read more

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Had colonoscopy in 2002, was fine. Had one recently, microscopic blood in stool, can you get coloncancer within 10 yrs? 64 yr old female.

Had colonoscopy in 2002, was fine. Had one recently, microscopic blood in stool, can you get coloncancer within 10 yrs? 64 yr old female.

Absolutely...: There are several biologic pathways by which cells grow into cancer--this is particularly true with colon cancer. "interval colon cancers" are defined as presenting relatively soon after a negative colonoscopy exam. This phenomenon is well-defined & well-recognized in the medical literature, distinct from missed or regrowing lesions, & accepted as inevitable despite current screening strategies. ...Read more

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I have blood in stool. I've had 4 colonoscopy. Negative results. Had diverticulitis before. What could my problem be?

I have blood in stool. I've had 4 colonoscopy. Negative results. Had diverticulitis before. What could my problem be?

Maybe not colonic...: Evaluation is always appropriate for re-bleeding from the gut. Black stool often means bleeding from upper GI tract; grape jelly stool from small bowel; silver stool from biliary tree; burgundy stool from right colon; red blood from left colon to anal canal. Any accompanying symptoms? Do you take NSAID's, over-use alcohol, smoke tobacco, have other risks (AVM's for example)--lots to consider. ...Read more

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Saw a GI for microscopic blood in stool, confirmed by FIT. Flat out refused a colonoscopy as I feel this was just an incidental finding. Is this ok?

Saw a GI for microscopic blood in stool, confirmed by FIT. Flat out refused a colonoscopy as I feel this was just an incidental finding. Is this ok?

Possible mistake?: ...its a warning sign. May be predictable (e.g. rectal trauma, fissure, hemorrhoids with straining), but evaluation is always appropriate. A rule of thumb (but not absolute): black stool means bleeding comes from upper GI tract; grape jelly stool from small bowel; silver stool from biliary tree; burgundy stool from right colon; red blood from left colon to anus; occult blood is anyone's guess. ...Read more

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I have UC and my blood in stool came back my GI dr knows about it I'm havering a colonoscopy but what can I do for now I don't get it for a month?

I have UC and my blood in stool came back my GI dr knows about it I'm havering a colonoscopy but what can I do for now I don't get it for a month?

Advice from your doc: If you have had blood in your stool before, and have seen a gastroenterologist, then some treatment has probably already been prescribed. This could be medication such as sulfasalazine, other oral or enema medications including Asacol (mesalamine) or Lialda, or even cortisone. Call your doctor back to make sure she/he doesn't want you to increase or change your medication before your colonoscopy. Good luck! ...Read more

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Feces (Definition)

Feces is the product of ...Read more