Been there, done that, still living with it.
I was 18 when they diagnosed me with colon problems (Hemangeoma). They said that I wouldn't live past 21 if I didn't have it taken care of. At the time of discovery, there wasn't much that they could do. Every surgen was leary of going in for fear of massive blood loss.
So what did I do? Partied like there was no tomorrow! Made peace with myself, and accepted what was going to happen.
When I turned 21 things went down hill. Always tired, anemic as hell, could barely get up for more than 6-8 hours a day.
Went broke, got on state run health care. Assigned to a surgen who basiclly said "Let's have some fun and see what we can do! I have never done anything like this, but I am willing to try." I figured "Why not! Nothing to loose!"
12 hours on the table, woke up with a huge scar on my belly, screaming for pain killers. Laid up in the hospital for 3 months recovering. Temporary loop ileostomy. Spent the next year in and out for complications and finally the removal of ileostomy bag. Now colon doesn't work normally.
Still here at 34, wondering what to do. Odd how one accepts the end, but went it doesn't come, you feel ripped off. But here I am, getting through life.
Yearly checkups till the day I die, from now on. Flex sigmoidoscopies and colonoscopies aren't as bad as people make them out to be. Just sound horrible.
But back to blood in stools. If it lasts for more than a week... GET IN FOR A CHECK UP! Many people get small tears in colon or sphinter from to solid of stool, but they heal. If it lasts longer than a week, you have possible issues.
Colon cancer is the unpublished killer. Sneeks up on people.