Why is there liquid discharge after sex?

Patient's question:

After I have sex with my husband, there is some transparent liquid that comes out from him, which is uncontrollable. Sometimes it happens even when he is already soft. Is this a normal phenomenon? Additional question: Is it also normal for a little bit to come out from my vagina after he has finished ejaculating?

Doctor's answer:

After coitus, semen flowing out of the vagina is a normal phenomenon. A man can eject about 2-5 milliliters of semen per ejaculation, which contains billions of sperm, but only 15-50 sperm typically reach the uterine cervix and uterine cavity to wait for fertilization, with the number not exceeding 200. The majority of sperm are excluded from the uterus and are expelled from the vagina along with the semen.
To prevent semen leakage and increase the chances of conception, the woman's hips can be elevated during intercourse, and she should lie supine for two hours afterward to reduce leakage.

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