Bro, it isn't the Tren, I've used Tren in my last couple cycles, hell I love the stuff. I get bloody stools, but it's because of hemmorhoids... The first time it happened, I was 17 and it freaked me out cause there was tons of blood so I had a colonoscopy, found nothing, just two small piles(hemmorhoids) on the inside, so sometimes they tear and you bleed, no biggy.... But it isn't the tren, lol.... My doc actually told me that winny would make it worse cause winny things blood out more... But get it checked out to be safe, at 39 spontaneous bleeding could be a sign of something bad. I'm only 19 now, have to have a colonoscopy every year now, but the discomfort is good to know that I don't have any internal problems.....