Pain in the opening to the rectum anus can be caused by diarrhea or constipation or by scratching a rectal itch. A common cause of anal pain is a tear in the lining of the lower rectum anal fissure. This type of anal pain usually goes away when the problem clears up. Injury during anal sex or from an object being placed in the rectum also can cause pain.
Skip navigation! Story from Sex. If done right, anal sex can be can great way to stimulate a major pleasure point. It could also be caused by moving too quickly, not giving the muscles in the anus enough time to relax.
Of all the sex acts out there you can try, anal sex comes with some of the most vicious rumors. I don't just mean the rumor that everyone said Stephanie from high school was doing it, or the weird, creeping thought that all your friends are secretly doing it behind your back pun intended. I mean the rumor that it's always painful, but if you want to try it, you just sort of have to put up with it and dive into butt stuff, head- or I guess ass- first.