I'm starting to get positively offended at how much taint is being left behind on these patients. The positioning is so fucking weird, and it always has that telltale seam down the middle. Anyway.
After reading the guy's post, it seems he developed either a fistula (hole) between the bladder and neovaginal canal or the bladder was prolapsing down and putting pressure on the neovagina. So he got some kind of graft to try and close it. The graft failed. I don't know what they're using these days for this type of shit, vaginal mesh was all the rage and became a class action lawsuit for maiming patients left and right. So its complicated even for people with non-frankenstein genitalia to sort out. No clue what they use on inverted dicks. I do know that if an initial repair fails you are unlikely to get another chance to fix it. If it doesn't work the first time its statistically useless to try again so surgeons nope out of that.
The patient describes the graft as completely occluding the urethra so he couldn't pee until he had this thing cut. I don't know how anyone that does genital surgery could be unfamiliar with suprapubic (above the pubic bone) urinary catheters. You're supposed to install one if your patient needs a way to urinate that circumvents the urethra. It is a fairly straightforward procedure to get one. Farrah Flawless ended up with one for several months while having some kind of neovaginal health crisis. If the patient's recollection of events is accurate, rumer is worse than I thought. iirc he said he went back to the office, he would have been better off in an ER where they aren't afraid to put tubes where they need to go. There was a pic in this thread way earlier from some troon whose neovagina just makes shit like this naturally and sheds it every so often, and I do not trust the word of troons in general about this type of shit because soooo many of them claim to be intersex when they aren't.
Sometimes real women do need support because of pelvic organ prolapse, and in such cases they can be fitted with an appropriate pessary (if avoiding surgery is a goal). The shape of it depends on which organs are prolapsing and putting pressure on the vagina. They have been around for many hundreds of years. They can be left in or taken out whenever though. Here is a pic of various shapes for various conditions.
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I don't know if they work on troon neovaginas... It would be more accurate to say I don't know why they
would work on a troon.