I like what this commenter had to say at bisexual dot com:
"The colon is self cleaning so there's no need to have even done any of what you did.
If you're getting fisted elbow deep, handballed, or taking BIG toys like a horse dildo, or getting something like a colonoscopy done, that's the only time you should actually clean yourself out all the way like that.
Most people can't take a fist/forearm, hand, or big toys in their anus or don't get a colonoscopy done all the time, so it's pointless.
You should NOT clean your colon and anus out like that with a douche/sure shot for just regular anal sex with a cock/toy/finger, and you shouldn't be doing it weekly or multiple times a week and it causes more problems than it solves.
There is no need for enemas or douches. In fact an enema or douche can cause more problems than they solve and have been implicated in the increased transmission of STIs including HIV. Also it can fuck up your electrolytes, and some people get addicted to it and need to use an enema/douche just to take a normal regular bowel movement. It should only be used if you're constipated and a laxitive does not work for you.
If you have regular bowel movements, everything works fine in regard to your anus/lower digestive tract, you eat lots of fiber, drink enough fluids, eat yogurt, void yourself before sex, and wash on the outside of your anus with soap and water like you should you'll be fine for sex.
If you like anal sex really "dirty" don't do any of that as some people are into having anal sex like that when feces aren't voided from the bowels.
If you do happen to encounter some small amount of fecal matter or santorum, big deal. It's an ass, get used to it. This is all the more reason that you should be using a condom.
I've never barebacked but friends of mine who have aren't into douching or anything at all and they don't encounter fecal matter or santorum."
