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Doctor insights on: Intermittent Rectal Bleeding From Colon Cancer

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When colon cancer reach a level that causes anemia blood in stool became visible or stool became dark or rectal bleeding has started am I right?

When colon cancer reach a level that causes anemia blood in stool became visible or stool became dark or rectal bleeding has started am I right?

Not necessarily: Slow bleeding from colon cancer can lead to anemia, without visible blood or black tarry stools. More often than not, anemia is the presenting symptom, especially for right sided colon cancers. ...Read more

Dr. Barry Rosen
4,344 Doctors shared insights

Cancer (Definition)

Cancer is a group of diseases that is characterized by uncontrolled cell growth leading to invasion of surrounding tissues that spread to other parts of the body. Cancer can begin anywhere in the body and is usually related to one or more genetic mutations that allow normal cells to become malignant by interfering with internal cellular control mechanisms, such as programmed cell death or by preventing ...Read more


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Do all colon cancer patients have rectal bleeding?

Do all colon cancer patients have rectal bleeding?

Not always.: Early in colon cancer, there are typically NO symptoms until the cancer tumor grows large enough that it begins to cause problems in the digestive tract. Small, asymptomatic cancers can be found by screening colonoscopy. Larger tumors may cause changes in bowel habits (diarrhea/constipation/change in consistency of stool), blood in stool, unexplained weight loss, weakness/fatigue, persistent pain ...Read more

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IFOBT test Dec 2014, no occult blood. April 2nd, 2015 minor rectal bleeding, stop 1 day after. April 17th, 2015 started again. I'm 22. Colon cancer?

IFOBT test Dec 2014, no occult blood. April 2nd, 2015 minor rectal bleeding, stop 1 day after. April 17th, 2015 started again. I'm 22. Colon cancer?

Possibly hemorrhoids: Most rectal bleed is usually from hemorrhoids, cancer is extremely rare especially at this age, but needs to be ruled out, therefore a specialist either general surgeon or gastroenterologist is necessary. ...Read more

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I don't drink alcohol at all and still have rectal bleeding, could I have colon cancer?

I don't drink alcohol at all and still have rectal bleeding, could I have colon cancer?

Maybe: Rectal bleeding is never normal. It always needs to be checked out by a physician. There are many causes of rectal bleeding. It could be something as simple as a hemorrhoid or something as serious as colon cancer. ...Read more

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Had rectal bleeding for a few weeks 2.5 years ago. No bleeding since. Dr said it was likely fissure that healed. Would colon cancer continue to bleed?

Had rectal bleeding for a few weeks 2.5 years ago. No bleeding since. Dr said it was likely fissure that healed. Would colon cancer continue to bleed?

Rectal bleeding: If your rectal bleeding has come back, then okay to get in to your doc for evaluation. More likely this is a hemorrhoid or recurrent fissure. Cancer in your age group is very low incidence. However, an exam under anesthesia will lead to a diagnosis, and treatment. Good luck. ...Read more

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24 yr old bright red rectal bleeding for a few weeks almost 3 years ago. No bleeding or symptoms since. Dr said ok. Would colon cancer continue to bleed?

24 yr old bright red rectal bleeding for a few weeks almost 3 years ago. No bleeding or symptoms since. Dr said ok. Would colon cancer continue to bleed?

No Rules: Unlikely that after all this time, there would be a cancer not causing symptoms. However, cancer does not follow rules.
If there was bleeding, some evaluation should have been done, and maybe still should. ...Read more

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Has rectal bleeding when she is constipated. Can this be a sign of colon cancer?

Has rectal bleeding when she is constipated. Can this be a sign of colon cancer?

Eval: Possible causes include: fissures, fistulas, hemorrhoids, cancer, infections or inflammation. Although rough, dry stool could lead to hemorrhoids or bleeding - you can not just assume that is the reason for bleeding. Get evaluated if more than a one time occurence. ...Read more

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Rectal bleeding. Thin stools. I'm 18 and have no cancer in my family! Is it safe to say that I DON'T have colon cancer given my age and family history?

Rectal bleeding. Thin stools. I'm 18 and have no cancer in my family! Is it safe to say that I DON'T have colon cancer given my age and family history?

Yes: It is unlikely that you have colon cancer but an evaluation is needed to see why you have rectal bleeding. You could have hemorrhoids or just be constipated. You should not have regular recital bleeding. ...Read more

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Loosed/mushy stools for months, constant bloating, fatigue, loss of appetite & weight. No rectal bleeding or pain. Anxious about colon cancer. I'm 25.

Loosed/mushy stools for months, constant bloating, fatigue, loss of appetite & weight. No rectal bleeding or pain. Anxious about colon cancer. I'm 25.

Rare but possible: At 25 it would be very unusual to develop colorectal cancer and almost always would be related to an inherited family predisposition like having 2 or more first degree family members with colorectal cancer, ovarian or endometrial cancer or someone with a lot of polyps. At your age these symptoms are usually not cancer but you absolutely see your doctor for a check up ...Read more

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21yr old male, could this be colon cancer? Blood on stool, Rectal bleeding (bright red/darker at times,) painful bowel movement, big & hard stool, etc.

21yr old male, could this be colon cancer? Blood on stool, Rectal bleeding (bright red/darker at times,) painful bowel movement, big & hard stool, etc.

Chronic constipation: Chronic constipation can lead to hemorroidal bleeding and fecal impaction Once the stool is hard and large, medications are generally not effective initially. Treatment consists of preventing constipation through diet, bowel retraining and stool softeners. To get things moving at the beginning of treatment, Fleets enema may be necessary. Without a strong family history, cancer would be uncommon. ...Read more

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What kind of bleeding is a symptom of colon cancer? Red blood in stool, black stool, or both?

What kind of bleeding is a symptom of colon cancer? Red blood in stool, black stool, or both?

Both: Or none. Bleeding may not be seen only occult blood Speak to your doctor if you are concerned at the age of 19 ...Read more

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Been having thin/narrow stools. Clear rectal exam by gp/no blood in stool. Should I fear colon cancer? I'm 39 &had adenocarcinoma insitu of cervix 4yrago

Been having thin/narrow stools. Clear rectal exam by gp/no blood in stool. Should I fear colon cancer? I'm 39 &had adenocarcinoma insitu of cervix 4yrago

Possible lesion: In situ adeno unrelated unless some for of radiation employed that could narrow distal bowel. Narrowing of stool suggests that there is some constriction of bowel causing a narrowing of the lumen and thus the stool. Blood does not have to be present but relying on a gp rectal not satisfactory. Sigmoidoscopy at a minimum and colonoscopy more accepted for this problem. ...Read more

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I'm 22 with freah blood in stool occassionally no other symptoms chances it means I may have colon cancer?

I'm 22 with freah blood in stool occassionally no other symptoms chances it means I may have colon cancer?

No: The commonest cause of painless rectal bleeding in a young individual is internal hemorrhoids. You should see your pcp who can do proctodscopy and see if the hemorrhoids are bleeding. He can then decide whether you need colonoscopy or a colorectal surgeon for treatment of bleeding hemorrhoids. ...Read more

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I have had bright red blood in stool recently and occasionally diarrhea. Do I have colon cancer?

I have had bright red blood in stool recently and occasionally diarrhea. Do I have colon cancer?

Probably not.: More common causes of blood in stool include hemorrhoids. It would be exceedingly rare for a 19 year old to have colon cancer. If the bleeding does not stop, see your physician. ...Read more

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How rare is colon cancer in a 28 year old male it runs in the family I have had constipation it goes away and comes back there is no blood in stool.

How rare is colon cancer in a 28 year old male it runs in the family I have had constipation it goes away and comes back there is no blood in stool.

Depends: Colon cancer is rare at your age. It is prudent to get screening colonoscopy at an age ten years younger than the lowest age at which any family member was diagnosed with colon cancer. ...Read more

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Dr. Says I have inflammation in anus that's why see streak of blood in stool. 41 still worried colon cancer no family history of it though. Do I worry?

Dr. Says I have inflammation in anus that's why see streak of blood in stool. 41 still worried colon cancer no family history of it though. Do I worry?

Get examined: You won't be able to calm down until you've got a colonoscopy. Go for it. A streak of blood in the stool is almost always from having passed a hard stool and getting a small tear, rather than from colon cancer. On the other hand, your concern is indication enough for a real exam. ...Read more

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I have a slight pain near my tail bone. I have also recently had blood in stool but I do have hemmorroids. Is colon cancer likely?

I have a slight pain near my tail bone. I have also recently had blood in stool but I do have hemmorroids. Is colon cancer likely?

No: Your tail bone area pain has nothing to do with colon cancer but with possible trauma or bone disease. If you have a family hx of colon cancer then get a colonoscopy otherwise treat your hemorrhoids and see if you continue to have fecal blood ...Read more

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What are some possible causes of blood in stool, lack of appetite and stomach discomfort? I'm scared I have colon cancer

What are some possible causes of blood in stool, lack of appetite and stomach discomfort? I'm scared I have colon cancer

Blood in stool: GI symptoms. Please see your doc who may refer you to a GI doc or order an upper and lower scope. It MAY be anything from straining when having a BM to something more. It is very important that you follow up. Then you may catch this early and have peace of mind. Peace and good health. ...Read more

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I did a CT scan came back negative for diverticulitis but showed a narrowing of the colon. 3cm. Other organs are ok. Does it mean I have colon cancer? I have no blood in stool but I had two episode of complete blockage with vomiting. Colonoscopy next

I did a CT scan came back negative for diverticulitis but showed a narrowing of the colon. 3cm. Other organs are ok. Does it mean I have colon cancer? I have no blood in stool but I had two episode of complete blockage with vomiting. Colonoscopy next

Colonoscopy: Colonoscopy, that you planning, should settle the issue.
Wish you good health!
Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form.
Practice safe sex, if you have sex. ...Read more

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28 yrs old, male. Do narrow stools always indicate colon cancer or are there other reasons? No blood in stool. Bloating and gas.

28 yrs old, male. Do narrow stools always indicate colon cancer or are there other reasons? No blood in stool. Bloating and gas.

No – but what's up?: And narrowed caliber of stool can be commonly associated with colon carcinoma in any age group. It relates to the relative constriction of the rectum prior to evacuation. Other conditions include rectal stenosis, a sizable rectal polyp, or other conditions serving to narrow and constricted the normal sized stool. Best let a gastroenterologist evaluate you by colonoscopy and anoscopy. ...Read more

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Does my son have colon cancer? No nausia barely but little stomsch cramp no blood in stool pencil thin stool constipation 13 years moderately active

Does my son have colon cancer? No nausia barely but little stomsch cramp no blood in stool pencil thin stool constipation 13 years moderately active

Virtualy impossible: Colon cancer is practically unheard of in the pediatric population. By the brief history it is conceivable that you have problems due to constipation and an inadequate diet.
Make sure he drinks water and not sugary drinks and eats generous portions of veggies and fruit.
If he still has problems after you modify the diet, consult your doc. ...Read more

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What are the chances this is colon cancer? Loose bloody stool. 25 year old male with history of ibd. Seeing a GI doc soon.

Loose stool.: At your age, unless you have a strong family history of colon cancer, it would be very unlikely that you have colon cancer. But given your history of IBD and your current symptoms, a colonoscopy would be in order. ...Read more

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My brother passed two years ago with colon cancer so I'm a bit worried now about the bleeding from my bum.

My brother passed two years ago with colon cancer so I'm a bit worried now about the bleeding from my bum.

Get seen: You don't list your family history in regards to colon cancer or his age at diagnosis, but rectal bleeding is never normal, particularly with a history of cancer in your brother. Recommend seeing your family physician with consideration for GI evaluation. ...Read more

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Do you think I have colon cancer? Bleeding from rectum

Do you think I have colon cancer? Bleeding from rectum

Maybe: Get checked. Could be anal fissure or hemorrhoids. Don't want to miss a cancer in its early stages. ...Read more

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Gastrointestinal pain and bleeding, prior colon cancer. Who do I see?

Gastrointestinal pain and bleeding, prior colon cancer. Who do I see?

See Doctor Soon: I recommend that you return to see your cancer surgeon, medical oncologist, or gastroenterologist as soon as possible. Any of these doctors can order the appropriate tests to get to the bottom of this. ...Read more

Dr. Jan Lei Iwata
13 Doctors shared insights

Colon (Definition)

The colon is another term for the large intestine. This is the final portion of the digestive system, responsible for absorbing water and storing stool before evacuation. It is divided into sections described as cecum; ascending, transverse, descending and ...Read more


Dr. Julie Abbott
12 Doctors shared insights

Colonic (Definition)

This is a combining term referring to some condition, treatment or disease of the colon. Such as colonic enema, colonic ...Read more