I had one a few years ago that had a vaginal prolapse about a week before she calved , got the vet right away and went back in on it's own when she stood up , he checked the calf and it seemed okay , he said once she has the calf it should be ok , if not he could sew it. she was okay for about a month after the calf was born but it started coming out again , I kept pushing it back in about once a week for six or seven weeks then in finally stayed in , when we weaned the calf at about 7 months , we sent her to the auction. I never spent the money to sew her , I figuered she would keep having problems in the future.