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Doctor insights on: Is Diarrhea A Symptom Of Colon Cancer

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Is diarrhea a symptom of colon cancer? In the past month I've had 3-4 acute diarrhea attacks, which is abnormal for me. No dietary changes either.

Is diarrhea a symptom of colon cancer?  In the past month I've had 3-4 acute diarrhea attacks, which is abnormal for me.  No dietary changes either.

Yes and no: Diarrhea can be a symptom of cancer, particularly if your stool appears black and tar like; but there are far more common and more likely causes of diarrhea in a 42 year old. Don't hesitate to be seen. ...Read more

Dr. Barry Rosen
4,287 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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Is constant diarrhea or constipation a symptom of colon cancer or IBS. What is one alarming sign of colon cancer. Thanks?

Is constant diarrhea or constipation a symptom of colon cancer or IBS. What is one alarming sign of colon cancer. Thanks?

Cancer is rare...: These are not typical presenting symptoms of colorectal cancer but could be seen in cancer patients in some cases. On the other hand these ARE common IBS symptoms. An easy way to reassure yourself is see a surgeon or GI doc who will be able to examen you and do some tests including a colonoscopy which. They can set your mind to rest. Feel better soon ...Read more

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Which is the main symptom of rectal/colon cancer? Constipate or diarrhea? Or both? I got a constipation fir 4 months already but no diarrhea

Which is the main symptom of rectal/colon cancer? Constipate or diarrhea? Or both? I got a constipation fir 4 months already but no diarrhea

Either: Rectal and colon cancer could be very serious and should not been taking lightly you are 25 years old chance of cancer very low but not zero you simply have a bad constipation you should not let yourself go for four month without proper treatment eat more healthy food less junk eat more fruits and fibers drink a lot of water and take stool softener if you need it see your doctor if not better. ...Read more

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How does colon cancer cause diarrhea?

How does colon cancer cause diarrhea?

Potassium wasting: Your colon ordinarily is involved some in ridding your body of potassium, and some colon cancers and infamously the "villous adenoma" precancer can pump large amounts of potassium solution into the gut. And any obstructing lesion can cause intermittent constipation and diarrhea. Best wishes. ...Read more

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I'm having chronic diarrhea. What are the chances that this is colon cancer at age 30 years old?

I'm having chronic diarrhea. What are the chances that this is colon cancer at age 30 years old?

Low: The chances are low. Yet this does not mean that you should not discuss with your primary care physician or GI specialist in further detail. There are certain clues in a history we use to determine a risk profile. This can only be ascertained in a face to face discussion. This forum is subpar for this type of discussion. ...Read more

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18 yr and have been having diarrhea have been under lots of stress went to dr she says she would bet her life on it that im ok. do i have colon cancer?

18 yr and have been having diarrhea have been under lots of stress went to dr she says she would bet her life on it that im ok. do i have colon cancer?

Very highly unlikely: Please listen to your doctor. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, low fat milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. 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. ...Read more

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I have colon cancer and am on chemotherapy, diarrhea, and now hemorroids, what can I do to help? 

I have colon cancer and am on chemotherapy, diarrhea, and now hemorroids, what can I do to help? 

Medication : Check with your medical oncologist for advice and that these are the side effects of your chemotherapy. You can take over the counter medication. Immodium or kaopectate for diarrhea and or a low fiber diet. Topical ointments or suppositories for your hemmorhoids. Try annusol or tucks (witch hazel) or preparation h. There are other meds and also prescription medications as well. ...Read more

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What is the reason behind (diarrhea followed by constipation ) like in case of colon cancer ?

What is the reason behind (diarrhea followed by constipation ) like in case of colon cancer ?

Partial obstruction : When the colon gets partially blocked (as in some cancers) stool can back up and constipation occurs. When constipation is longstanding, liquid stool moves around the blockage. This is called post obstructive diarrhea. Constipation appears to follow the diarrhea but was really there to begin with. In these cases a full workup and a gentle clean out is required. Visit your doctor for both. ...Read more

Dr. Oscar Novick
2,142 doctors shared insights

Loose Stools (Definition)

Loose stools is a symptom in which a person's stool (poop) does not hold its shape after it goes into the toilet. Instead of remaining a shaped piece of poop, the poop spreads out in the toilet bowl water. Very loose stool is called diarrhea. Loose stool can be caused by infections, certain foods or drinks, ...Read more


Dr. Scott Keith
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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