I saw blood in my stool and i'm completely freaked out. what could it mean? there is colon cancer in the family.

Many things.: There can be many reasons for this. It may only be hemorrhoids, or anal fissure. These should be considered before cancer. Colorectal cancer of the left side or sigmoid colon can present with bleeding also, but other symptoms are present, like altered bowel habits, and abdominal pain. A fecal occult blood test is done in the standard work-up for colon cancer. Start by seeing your doctor.

Probably: Just hemorrhoids, but with a family history, all bleeding needs to be properly evaluated, and you probably need a colonoscopy. Do not be freaked out as it does nothing to change your diagnosis, but you at least need a diagnosis. Remember, if caught early by colonoscopy, survival is excellent. See a GI doctor or colon and rectal surgeon soon!

Hemorrhoids more lik: Colon cancer is not usually associated with frank blood in stools. Bright blood usually indicates hemorrhoids. However, just because cancer is less likely is not a reason to ignore it. Even hemorrhoids can cause anemia. Please consult your doctor so that the lesion may be treated.