First: are you absolutely certain that the diagnosis is correct?
I am asking because five gynaeocologists all diagnosed fibroids of the uterus, based on ultrasound scans and internal examinations and advised a hysterectomy for a similar problem that I had. They all agreed that the growths were not a cancer, which was a relief, but hummed and hawed about what they were before deciding on fibroids.
Being 69 at the time, I agreed to a hysterectomy and was somewhat startled on coming round from the anaesthetic to be told by the nurse that the surgeon would be up to see me to explain, but that he had said I did not have massive fibroids and that he had left my uterus in place, as what I had had, and he had removed, was a gigantic ovarian cyst!
So it might pay to ask whether what they are calling a proplapse of the bowel could be anything else. Ultrasound is apparently not as infallible as we all thought!
Next if you are confident that your consultant does know what he or she is talking about, ask which treatment they advise as best in the long term, and whether an operation is necessary or could be avoided or postponed by other treatment.
Even if you are a health professional it is hard to remain emotionally detached when it is your own health we are talkig about, and no-one except a consultant who has actually seen you can, or should, advise.
That said, postponing an op. is perhaps unwise, as you will tend to worry that it might be necessary at some point, and because the older one is the more serious surgery becomes.
I hope you reach a solution that solves the problem