At lower doses, it can help prevent constipation, and at higher doses, it can induce diarrhea Constipation and intercourse, how are the two related, you ask So you can adjust the dose if you want to get things moving just slightly, she says.
Does A Shower Help With Constipation at Jason Criner blog
But it’s a myth that fisting cures constipation, of course, just as it’s a myth that anal sex is inherently dangerous
“fisting is a safe activity, provided that both the top and bottom are.
When the colon is full of firm stool (see image below) it may put pressure on the vagina and bladder making intercourse feel uncomfortable If you are a person who has anal sex, avoiding constipation is even more important Anal sex while constipated will undoubtedly lead to a poopy sex session. If you think it would help constipation, it could actually impact their stool even more, making it worse.
The authors point out that the internal anal sphincter muscle is responsible for maintaining the resting pressure of the anus (i.e., keeping the anus closed and keeping stool inside where it belongs), and previous studies show that men who receive anal intercourse have lower anal resting pressure.