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Doctor insights on: Is Rectal Bleeding Normal After A 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
2,042 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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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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When liver cirrhosis blood in stool made colonoscopy there is no proof bleeding everything is normal what is reason for bleeding? How can I diagnose

When liver cirrhosis blood in stool made colonoscopy there is no proof bleeding everything is normal what is reason for bleeding? How can I diagnose

EGD is next.: People with cirrhosis can get varicose (dilated veins) within the esophagus which can bleed. If the colonoscopy didn’t show anything then the next step should be EGD for a look at the esophagus. Blood testing as well to see if you’re anemic and/or coagulopathic. 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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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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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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Rectal bleeding, DRE found no evidence of piles but stool was dark. 30 y/o. Need colonoscopy. Cancer?????

Rectal bleeding, DRE found no evidence of piles but stool was dark. 30 y/o. Need colonoscopy. Cancer?????

Likely not: There are many reasons for rectal bleeding, including internal hemorrhoid, inflammatory bowel disease and diverticulitis, among others. Colon cancer is certainly a reason, but at your age, unless you have a huge family history of colon cancer, it is way down on the list. You should get a colonoscopy for sure, but don't go into it with the worst case assumption 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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Problem with rectal bleeding. Completed colonoscopy. It was clear. Still seeing blood when wiping. This coincides with pain behind scrotum & rectum?

Problem with rectal bleeding. Completed colonoscopy. It was clear. Still seeing blood when wiping. This coincides with pain behind scrotum & rectum?

Merits evaluation.: Potential causes include hemorrhoid, prostate inflammation, rectal fissure or a lesion related to the colonoscopy. It merits an evaluation by the physician who performed the colonoscopy. 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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Had a colonoscopy d/t rectal bleeding dr said bleeding was from BP meds I take at night I had ulcers on the descending colon. What's the solution?

Had a colonoscopy d/t rectal bleeding dr said bleeding was from BP meds I take at night I had ulcers on the descending colon. What's the solution?

I disagree: I am unaware of any BP med that would cause colonic ulceration. You CAN see that with non-steroidals like ASA, motrin etc.
Were the ulcers biopsied? That can be a sign of Crohns disease.
Where were the ulcers? If very low in the rectum can be from chronic constipation.
How old are you? Read more

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I'm 30.Afraid of colorectal cancer due to rectal bleeding+other symptoms. Can PCP order virtual colonoscopy or must I visit gastro? Is virtual good?

I'm 30.Afraid of colorectal cancer due to rectal bleeding+other symptoms. Can PCP order virtual colonoscopy or must I visit gastro? Is virtual good?

Colonoscopy: Virtual colonoscopy has value but w/the symptoms you mention you need a real one, which will yield more information. Your PCP can refer you to a gastro, which is the type of doc you would be best served by. Peace and good health. Read more

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What could this be, rectal bleeding with clumping of 100% straight blood? "no stool just bright blood" I am trying to help my husband with this problem. He has been to a doctor and a colonoscopy and MRI were done. The colonoscopy was said to show only

What could this be, rectal bleeding with clumping of 100% straight blood? "no stool just bright blood" I am trying to help my husband with this problem. He has been to a doctor and a colonoscopy and MRI were done. The colonoscopy was said to show only

Internal hemorrhoids: This type of large amounts of bright red bleeding without stool and no pain and a negative colonoscopy is almost always due to vascular internal hemorrhoid, you need to see a colon and rectal surgeon, many times this can be treated with a simple office procedure (rbl). Read more

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I have had rectal bleeding, on and off for several months. Along with bad stomach cramps after eating. Nothing on colonoscopy.

I have had rectal bleeding, on and off for several months. Along with bad stomach cramps after eating. Nothing on colonoscopy.

Above or below: Blood in the stool and pain after eating could be signs of a gastric ulcer, in addition to the colonoscopy, you probably need an EGD (Endoscopic Gastro-Duodenoscopy, camera from above) to rule out a bleeding gastric ulcer. These typically present with stomach pain that is worsened by eating and blood in the stool (usually dark black stools or hidden, occult, blood on lab testing). Read more

Dr. Jason Campbell
169 Doctors shared insights

Rectal Bleeding (Definition)

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Dr. Alan Patterson
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