Ok, well i'm 20 years old and here's what's happening. Every now and then when I go to the bathroom, I will sometimes see blood on the paper, never on the stool, never in the water, just tiny trace amounts, on the paper and not actually by anything else, like what ever is bleeding is off to the side. It never hurts when I go, and it doesn't happen all the time, sometimes it might happen for 3 times when I go, and other times, it might be weeks before I see any blood, and when I do, it's a light red, almost a pink, not bright red by any means. Any ideas on what this might be, or what is causing it?