Quoting SaraSaraBoBara:" yeah but...what if she wanted to have sex? i mean what is the prognosis? it won't ever go away until surgery is done? i would be freaking out..."
You can still have sex, even if it's at the opening of the vagina. All that means is that is slipped from it's higher postion. It will move back up.
Sometimes it gets better on it's own (this is especially true the first year PP) sometimes it does not. It may never go away, but often causes no discomfort. MANY women have some amount of prolapse and don't even know it. Unless you have symptoms or problems (pain when having sex, problems urinating, back pain) then there isn't really an issue. And usually they'll do a pessary if you are having symptoms at first.
Surgery can be resuspension or hysterectomy, but resuspenions (where the resuspend the uterus) only lasts like 5 years, so they don't like that one often. It usually happens when women are older, and is actually a LOT more commont hen people think. Women just don't get help for it or talk about it. You can have a few different types of prolapses.