Surgical removal of a cancerous prostate leaves a gap between the end of the now-cut urethra and the bladder. The surgeon could pull the urethra up to the bladder and stitch it there, but for many/most/all men this would make erection painful as the penile skin is stretched.
To remedy this, the surgeon pulls the bladder down toward the pubic bone, and then sutures the urethra to the bladder.
This is an elegant solution which neatly solves the problem for men who are not transgendered, and for transgendered men until they have vaginoplasty. It becomes an issue then because the neo-vagina is normally created next to the prostate and below the bladder. Whoops! The bladder isn’t where it’s supposed to be — there’s no room for a normal-sized neo-vagina.
I’ve put an article into the GenderSong Reference section.
Are you a transgendered male who has been diagnosed with prostate cancer? Send a note to prostate-cancer@gendersong.com. We’re not selling anything, but we may have some information that may help. Please let us know, too, if you have had radiation therapy (either pellets or external beam) instead of surgery. I have no idea what happens to the bladder and the urethra with radiation.