Is it normal to have a backflow after sex?ie,Sperm flowing out of virgina after sex, even after staying for minutes, raising waist up still it must come out.and how can it be prevented?

I have also heard it before really but I have never come about it in any O&G book.

Anybody with answer plsss!!!

Concening your question, i dont think you should be worried. a study done recently showed that women retain only about 65 percent of an ejaculate after sex, and they can reject it all if they want.

More interesting, the researchers found that if a woman has an orgasm (and that orgasm might indeed include uterine contractions) soon after her male partner, she literally sucks sperm into her reproductive tract. If she has no orgasm, or orgasms after the man, she retains much less sperm.
In other words, women actually have the ability to accept or reject sperm to some degree.

during ejaculation sperm is thick but after a while it becomes "watery like"and therefore it is completely normal to have sperm flow out of your VA Jay Jay. no matter how long you stay with your leg up, the minute you come back down then some sperm will flow out.
you also have top consider the fact that after sex, the vagina muscle are stretch and it takes time before the muscle get back into place so if you have a tight Va Jay Jay chances are that less will come out (if the muscle aint stretched any longer)

A woman wit orgasm has a better chance of retaining sperm. But all i know is that raising the waist up and a man on top position helps a lot better. Enough dat ll make a baby is already deposited at any point in time though. Read more on d net pls.