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Doctor insights on: Why Is Pencil Shaped Stools A Sign Of Colon Cancer

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Dr. Barry Rosen
4,223 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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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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Does having pencil thin stool mean I have colon cancer?

Does having pencil thin stool mean I have colon cancer?

For how long?: Anybody can pass a thin one from time to time. If this persists for more than a few days, go in and get a rectal from your physician. It's more worrisome to have the caliber decreasing gradually over time. ...Read more

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Started having pencil thin stool. I'm really scared! do I have colon cancer?

Started having pencil thin stool. I'm really scared! do I have colon cancer?

Have it checked: Change in bowel movements can be a sign of colon cancer. It can also be a sign of other non-cancerous conditions of the colon as well, like diverticulitis. If this is a change for you, i would recommend going to a gastroenterologist and having it checked. ...Read more

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If someone has pencil thin stools due to colon cancer would the stool alternate meaning becoming thicker or it will always remain pencil thin?

If someone has pencil thin stools due to colon cancer would the stool alternate meaning becoming thicker or it will always remain pencil thin?

Pencil thin: The stool would tend to remain pencil thin because the stool is being shaped by the narrow colon. However, the stool could lose its form if it has a much softer or even liquid consistency. ...Read more

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At what point do I need to worry about colon cancer? I've had pencil thin stool for a week now and can't completely empty my bowels.

At what point do I need to worry about colon cancer? I've had pencil thin stool for a week now and can't completely empty my bowels.

Unlikely at your age: It would be very unlikely for someone of your age to have colon cancer, unless there's a strong family history that would suggest a genetic predisposition for such. However, with these pencil-thin stools, you may have an infection or inflammation within the colon which needs identification and treatment. A CT scan and colonoscopy would be in order to investigate this. ...Read more

Dr. Eric Kaplan
923 doctors shared insights

Colon Cancer (Definition)

Final few yards of your intestine, between the terminal ileum (small bowell) and rectum. It squeezes water and solidifies waste to stool. It is subject to outpouching (divertics) polyps, and these can become cancers. The cells are abnormal, invade into the muscle and travel ...Read more


Dr. Thomas Fiala
1 doctor shared a insight

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