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Doctor insights on: Why Would Colon Cancer Cause Narrow Stools

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Do narrow stools always indicate colon cancer?

Do narrow stools always indicate colon cancer?

No: More commonly due to spasm in lower colon. However, sudden change in stool caliber, "pencil thin" stools, cramps, bleeding, nausea, weight loss need evaluation. Ongoing symptoms need evaluation. At the least, this should involve a doctor visit, perhaps other tests. ...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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Can impacted stool in large colon and rectum cause black stools? What are your expert opinions?

Can impacted stool in large colon and rectum cause black stools? What are your expert opinions?

No: Darker but not black. Black stool can be from blood entering and mixing in the stool high up in the GI tract notably stomach and duodenum. Black can also be from iron pills and high iron intake in consuming a lot of high iron meals like spinach and green leafys. East to rule out blood with a simple smear at the doctors office. that's my advice. ...Read more

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Can always being constipated lead to colon or rectal cancer?

Can always being constipated lead to colon or rectal cancer?

Assoc, not cause: Dietary habits that can lead to constipation (low fiber, low intake of whole grains, legumes, fruits and veggies, high fat), can be associated (statistically in populations) with increased rates of colon and rectal cancer. Fiber supplements, vitamin supplements don't help out, diet does. There are other causes for constipation. Discuss with your doc; see a dietician if needed.. ...Read more

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Does colon cancer always make your stools bloody?

Does colon cancer always make your stools bloody?

Maybe: If having bleeding you should be checked for colon cancer or other problems that can cause bleeding. However you could have colon cancer without any visible signs of bleeding. If you are hi risk, get screened! ...Read more

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Dr. Le Wang Dr. Wang
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Doctors, what are the possibilities that ulcerative pancolitis could lead to colon cancer?

Dr. Le Wang Dr. Wang
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Doctors, what are the possibilities that ulcerative pancolitis could lead to colon cancer?

Colitis and colon ca: High. Pancolitis confers a 5- to 15-fold increase in risk for colon ca development compared to that in the general population. If a dysplastic mass or lesion occur, colectomy is needed. Also early colon cancer screening should be instituted for someone with ulcerative pancolitis. The lifetime incidence of crc at average risk is about 5%. ...Read more

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Colon cancer spread to small intestine, what do you suggest?

Colon cancer spread to small intestine, what do you suggest?

Depends: Did it grow directly into the small bowel or spread as a metastasis? In one or in many places? Was it just diagnosed or is it a late recurrence? Any previous chemo? What's the patient's general health? The patient's oncologist should be able to weigh all the options and come up with a treatment plan. If this is about you, best wishes. ...Read more

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Could diverticulitis lead to colon cancer?

Could diverticulitis lead to colon cancer?

No: Although there doesn't appear to be a direct link between diverticular disease and colon or rectal cancer, diverticular disease may make cancer more difficult to diagnose. And rarely, what appears to be diverticulitis may be colon cancer. Because of this, your doctor may recommend a colonoscopy after you've recovered from a bout of diverticulitis. ...Read more

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What cause bloody stool? Blockage in colon or rectum?

A variety of things: Rectal bleeding may be from hemorrhoids, fistula, fissure, cancer, infection or inflammatory conditions. If this has happened more than once or is associated with abdominal pain - please ensure you get a medical evaluation. Take care. ...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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Can a large polyp in your colon mean colon cancer?

Can a large polyp in your colon mean colon cancer?

Maybe: Larger growths can contain cancer, but other polyps can be large and still be fully benign. Pathology would review the polyp after it is removed. ...Read more

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How often are colon polyps malignant? What if the polyps was causing bloody stool?

1-3%: Approx 20% of patients >50 years old have adenomatous polyps (potentially precancerrous).The vast majority of colon polyps are benign, but if they remain in the colon for a long time(>10 years) they have the potential to progress to a cancer.Both benign and cancerous polyps can cause blood y stools all patients with blood with bm should be examined. ...Read more

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How can we find colon cancer through stool test?? What are the symptoms of colon cancer??

Here are few thought: Colon Cancer is often a silent disease in its early stages. That is why a colonoscopy examination is advised at the age of 50 years.
Some people will present with rectal bleeding(Blood in the stools). Abdominal pain and anemia related symptoms(fatigue) can also be a signal of colon cancer. Stool tests(2 of them) are also available through your PCP. ...Read more

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If 'pencil' stool and 'narrow' stool are signs of colon cancer but exactly how thin of the stool consider as pencil stool or narrow ?

If 'pencil' stool and 'narrow' stool are signs of colon cancer but exactly how thin of the stool consider as pencil stool or narrow ?

Any change.: Any change in stool caliber warrants investigation. If one's stool has changed in size (narrow), to any degree, a colonoscopy is warranted. This could be an early sign of colon caner. ...Read more

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Is it possible to have colonoscopy even with rectum fissures because of bloody diarrhea from colon?

Is it possible to have colonoscopy even with rectum fissures because of bloody diarrhea from colon?

Colonoscopy : It is important to find the cause of your rectal bleeding even if you have anal fissures by doing the colonoscopy. Good luck. ...Read more

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Does IBS lead to colon or rectal cancer?

Does IBS lead to colon or rectal cancer?

Probably not: Ibs probably does not lead to colon or rectal cancer. Certainly, no studies have found this. However, some of the symptoms of ibs, particularly ibs with constipation, may delay diagnosis of colon and rectal cancer. It may be harder to notice a change in bowel habits when your bowel habits change from day to day. ...Read more

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Why and how does metastatic cancer cause bowel obstruction?

Why and how does metastatic cancer cause bowel obstruction?

Grows into intestine: Metastatic cancers can spread to the intestine or the area right next to it. It can grow into the intestine and cause an obstruction, or it can cause scarring that twists the intestine can causes this problem. ...Read more

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Is it possible to have normal stool with colon cancer?

Is it possible to have normal stool with colon cancer?

Yes!: Most colon Cancers may not show up in or effect your stool till it is late and quite advanced(enough to narrow or block the lumen of the colon. If there is sufficient risk of colon cancer, then Colonoscopy is the best way to check for Colon Cancer provided the person is 50 years or older( this is the age to begin screening for Colon cancer in an asymptomatic person). ...Read more

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Why is secondary liver cancer from the colon cancer so hard to treat?

Why is secondary liver cancer from the colon cancer so hard to treat?

Colon ca mets: To live is hard to treat because many times the metastasis is on multiple lobe of the liver and cannot be surgically removed. Surgeon only do surgery with the intention of cure if they can remove the metastasis completely. If surgery is not possible you should still consider chemotherapy. The quality of life is still pretty good even if not cured. ...Read more

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Can you have colon cancer that causes flat stools two years after clean colonoscopy?

Can you have colon cancer that causes flat stools two years after clean colonoscopy?

CA 2 y postcolonsocp: Possible if they missed one before or if you have strong family Hx of colon cancer. Need more details. ...Read more

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Do narrow stools always indicate colon cancer?

No: More commonly due to spasm in lower colon. However, sudden change in stool caliber, "pencil thin" stools, cramps, bleeding, nausea, weight loss need evaluation. Ongoing symptoms need evaluation. At the least, this should involve a doctor visit, perhaps other tests. ...Read more

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Can holding your stool in cause colon cancer when you are 50?

No!: But it's not a good idea! when your body sends you the signal that is time to move her bowels, you should listen. It's really pretty smart. Obviously, one cannot always get to a bathroom when we get that signal. But if you do, go move your bowels. Your colon, rectum, and especially the hemorrhoidal veins will thank you (prevent hemorrhoids!) good luck! ...Read more

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Can you have colon cancer that causes flat stools two years after clean colonoscopy?

CA 2 y postcolonsocp: Possible if they missed one before or if you have strong family Hx of colon cancer. Need more details. ...Read more

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If 'pencil' stool and 'narrow' stool are signs of colon cancer but exactly how thin of the stool consider as pencil stool or narrow ?

Any change.: Any change in stool caliber warrants investigation. If one's stool has changed in size (narrow), to any degree, a colonoscopy is warranted. This could be an early sign of colon caner. ...Read more

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Does colon cancer usually cause bright red blood in your stool or is the blood darker in color?

Does colon cancer usually cause bright red blood in your stool or is the blood darker in color?

Usually occult...: It is usually not "red"-ily visible until late in the disease. Then it can be dark or bright, depending on rate of loss and location of leakage, as tends to darken with more time in GI tract. Also may be associated with narrowed caliber of stool. If concerned, see dr for fecal blood testing & if positive, referral for colonoscopy. ...Read more

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Worried at 41 have colon cancer cause of streak of blood on stool only when I squeeze and not everyday. Dr. Checked anus said I was inflamed in my anu?

Worried at 41 have colon cancer cause of streak of blood on stool only when I squeeze and not everyday. Dr. Checked anus said I was inflamed in my anu?

Family history?: Hard stool may cause streaking with blood. Take fiber laxative and drink plenty of water to avoid hard stools. Unless a close relative of yours had colon cancer before the age of 50, I would not be too concerned about colon cancer. When you turn 50 that would be time to get a colonoscopy. ...Read more

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23 .F No cancer history. Since 2 days inconsistency in BM. I go once a day but find hard to release. Lil narrow stools. Got gas.no blood Colon cancer?

23 .F No cancer history. Since 2 days inconsistency in BM. I go once a day but find hard to release. Lil narrow stools. Got gas.no blood Colon cancer?

Unlikely: A diagnosis of cancer of the intestines at 23 yr of age is very unusual. If you are constipated and there is larger piece of stool blocking passage of stool, this may cause thinner stools. Try to have more fiber in your diet and stay hydrated. ...Read more

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I have been having lower back pain, and pain in my right side.. along with narrow stools quite frequently. Could these be related? Colon Cancer?

I have been having lower back pain, and pain in my right side.. along with narrow stools quite frequently. Could these be related? Colon Cancer?

Um: Colon cancer could be but not the first thing to consider. You could have urinary issues, stones, infection, irritable bowel. I would see your doctor for a full history and physical. Good luck ...Read more

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Is 1/2 a penny size of mucus in stools 3x/wk and loose stools 1x/week a cause for concern? Could it be colon cancer? No family history.

Is 1/2 a penny size of mucus in stools 3x/wk and loose stools 1x/week a cause for concern? Could it be colon cancer? No family history.

Here are some...: Seeing various amount of mucus coated on stool is common and not clinically significant as long as having no blood, moving bowel regularly, and living a healthy active vibrant life. More? Ask Doc timely. If still in doubt, follow instructions in http://formefirst.com/eNewsletter06.html. ...Read more

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Chance that 4 CT scans over 2 1/2 years would all miss sympotomatic colon cancer (narrow stool, occasion blood), also sigmoidscope to 35 cm.

Fairly high risk: CT scans are NOT good tools for looking inside the bowel. Endoscopy is the preferred tool, but a sigmoidoscopy, at its best, misses looking at half the colon. A look to merely 35 cm has missed about 85-90% of the colon. The usual method to evaluate the colon is a complete colonoscopy. ...Read more

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Would symptomatic colon cancer be missed on 3 separate CT scans? I am only 37 but have had narrow stools and small amounts of blood for past year.

Would symptomatic colon cancer be missed on 3 separate CT scans? I am only 37 but have had narrow stools and small amounts of blood for past  year.

Unlikely : Best test would be a colonoscopy for your symptoms or at least a sigmoidoscopy. Usually if a colon cancer had symptoms a year ago those symptoms would have progressed over the ensuing 12 months and by now it would have been obvious by your symptoms and ct scan. ...Read more

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Do colon cancer polyps cause constant blood in the stool or intermittently? Do polyps only bleed when they're ruptured from straining passing stool?

Do colon cancer polyps cause constant blood in the stool or intermittently? Do polyps only bleed when they're ruptured from straining passing stool?

Intermittent: Bleeding form polyps is intermittent and depends on the size and type of polyp. That is why yearly testing is recommended. You may consult this site for information about blood in stool. http://www.webmd.com/digestive-disorders/blood-in-stool#1 For 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. ...Read more

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Can colonoscopy(done by an incompetent doctor) cause colon cancer? Suppose the doctor nicks something you know? There's bright red blood in my stool.

Colonoscopy: Colonoscopy by an incompetent doctor cannot cause colon cancer although it could have missed colon cancer. If a hole was put in the colon then there could be severe infection. Recommend reviewing your results of the colonoscopy because polyps, hemorrhoids, colitis, and diverticulosis could all cause rectal bleeding. ...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.

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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Dr. James Krick
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