I don't know about his, but I had one and it was very painful.
In my case, a small intestine got caught in some scar tissue (my appendix exploded years ago). The intestine was bent double and pinched shut. They operated immediately.
The surgeon told me it could happen again.
#37 “How do you get an intestinal blockage?”
I know a meatloaf recipe that could clear that in a jiffy....