Legally, there is nothing wrong with getting married while you are in the U.S. as a visitor (on a B-2 visa) , if you return home at the end of your permitted stay. But that doesn't mean this is a risk-free strategy.
Vaginal Prolapse (aka vault prolapse). If the uterus has been removed, apical prolapse may still occur if the supports at the top of the vagina tear or become weak. In this case the top of the vagina (and often small bowel as well, ie enterocele), fall toward the introitus.
Treatment of Vaginal Prolapse. Like most things, prolapse occurs in different levels of severity. In mild forms of prolapse, no treatment is necessary & it is reasonable to see what will happen with time. In most women, their prolapse will slowly worsen with time. Exercise, straining, & sex will not significantly cause the condition to get worse; although the prolapse may make these activities uncomfortable.