I go in on the 28th for my surgery. Hopefully it’ll only be an overnight stay, and a catheter for a few days until the incision strengthens some.
The catheter certainly doesn’t help the painful erections, but they would probably happen even if it weren’t there. The area is still fairly traumatized, and they’re cutting through the same muscle that makes an erection possible. You might also find that the erection changes some temporarily. It might curve a little, usually down, the skin might feel overly tight, the head might remain somewhat soft, and the overall length might be shortened by an inch or so. Those are all normal symptoms that may or may not happen, but they do go away in time. It might be a few weeks, or it might be six months, but it does goes away.
It’s really great to hear things are going so smoothly.