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.

Blood in stools: Usually darker blood. Can even be black colored stools. Bright red blood in stools is common with hemorrhoids or other anal diseases.

Both: Bright red color in stools is more commonly seen than dark blood. The later usually reflects an upper GI bleed; however, they both can happen. Also, sometimes the bleeding is so occult that it can't be appreciated by visualization and it has to be tested by a specific test called stool occult blood test.

Yes: Yes, but bright red blood in the stool or a dark color stool could be caused my many other factors. If you have blood in your stool you should see your physician for a thorough evaluation.