Yellow narrow stool, but not always narrow with a lot of mucus and sometimes blood. Is this colon cancer?

Bowel caliber/color. Any change in the caliber or color of stool should be evaluated with colonocscopy.
See a doctor. You need evalv by your pcp/gastroenterologist to dig further deep into your symptoms and associated signs like lymph nodes, wt loss. Loss of appetite, icterus etc, . Depending on your age the most likely disease causing these symptoms varies. For sure these symptoms of concerning for cancer. See a doctor soon.
See your Doctor. The color of stool is usually dictated by the liver. Caliber of the stool is a lower colorectal issue. The mucous and blood can be from the colon and needs evaluation by a gastroenterologist as soon as possible.

Related Questions

I'm 33 my father died from colon cancer.. I had a lot of blood in my stool sometimeso only blood and little black dots?

Get a medical check. Colon Cancer can be hereditary. So you should get yourself checked out by a physician. Anyone with rectal bleeding is suspect for Cancer, so a colonoscopic examination is advised. This is best done by a gastroenterologist. So you should seek medical help right away. Read more...

Sometimes after I drink a lot of whiskey I see some blood in my stool the next day. This is pretty scary, do I have colon cancer or something?

Probably not. Most likely related to gastric or stomach irritation. This can lead to a little gastric erosion causing some bleeding. I would suggest decreasing the amount of alcohol you drink. I would also suggest you discussing this with your doctor as it could be a more serious situation. Read more...
Blood in stool. It could be a variety of things. If the blood is bright red it usually is coming from the large colon. If black in color it may be coming from as high as your esophagus. You need an evaluation not only for the bleeding, but for the drinking as well. Don't be surprised if your doctor suggests you may have alcohol addiction issues. Read more...

Could three CT scans over one year all really miss symptomatic colon cancer (narrow stools, blood). Problems for past 2 years, doc says no way it wou?

Yes. Colonoscopy is not the ideal way to evaluate for colon cancer. The most accurate test is a colonoscopy. Contact a gastroenterologist to set this up. Read more...
Absolutely. Ct scan is by no means designed for detecting colon cancer. When it does, it is most often in the advanced stages since it is large enough to have either formed metastatic diseases (e.g. In the liver) or distorted the anatomy of the colon enough to become evident. The most sensitive test for colon cancer is colonoscopy. Ct is not a good test for screening for colon cancer. Read more...