What does it mean when you sometimes poo blood? I first did it around 6 or 7 years ago. Didn't think much of it and went on. A few years later I did it again. Maybe a few times a year. Last year I know I did it at least 3 or 4 times. 2 of those times were in the same week. The last time, either late last year or early this year was right after (never got off the toilet) another bowel movemen(Diarrhea). Most of the time my stomach will really be cramping up and after I went I felt fine. It's not just a bit of blood on the toilet paper like I hear about for hemmorhoids. (Don't feel one of those either). It's a toilet full of bright red blood.No foods seem to trigger it and it happens at random. I just can't figure out what the heck it is. I've read web MD's thing on IBS and I match nearly every symptom for that. Seeing as how it first started 6 years ago and I'm still here I don't think I'm in any immediate danger.