Hi guys. I've had what I think is external hemorrhoids for a year or 2 now. They are clearly visible with a mirror. As they've never really caused me any pain I've left them be. Over the last few months, every week or 2, I get alot of bright red blood when I poop. What worries me is that my last bowel movement also seemed to have alot of darker blood mixed in with the bright red blood, and even a huge clot on the paper. I do get grooves in my stool also, which I've heard can be caused by the hemorrhoids. Every symptom I have seems to be related to colon cancer also, which is terrifying. My only calming factor is that I can clearly see that I have hemorrhoids, so a possible, harmless cause is evident. I guess what I'm asking is if it's likely to be anything other than the hemorrhoids causing this, or could I also have those along with something more serious?