Skip to main content

Where does the ejaculate go?

Share |
thomas asks:

When me and my girlfriend have sex, and I ejaculate, it seems that all of the ejaculate just comes right back out. Why doesn't the semen stay inside her?

Sarah replies:

The vagina is basically a closed-ended, muscular tube. Since it's essentially closed, anything that goes in must eventually come out. So just like normal vaginal discharges, anything left over (ejaculate, lubricant, etc.) after sex eventually flows out due to gravity. Some will flow out right away (as you are noticing) and the rest leaks out over the next day or so. Please note this does not mean that the sperm all leak out (though some do). Sperm are really tiny and they swim, so many of them have already moved on before the rest of the ejaculate flows back out. So even though gravity and the natural design of the body causes the fluid to eventually flow back out, keep in mind that if you and your partner are having unprotected intercourse you still have pregnancy and STI transmission risks.

written 09 Oct 2007 . updated 09 Oct 2007

More like This

The next time anyone tells you that only losers masturbate, or that they don't, and never would, bear this in mind: according to most studies and surveys, about 95% of adults have masturbated or...
I'm a Jew. How do I have Kosher sex? I'm Hanne Blank, the Jewish editor on the Scarleteen staff. I'm going to take a quick stab at answering your question, though really, the best way to get an...

Information on this site is provided for educational purposes. It is not meant to and cannot substitute for advice or care provided by an in-person medical professional. The information contained herein is not meant to be used to diagnose or treat a health problem or disease, or for prescribing any medication. You should always consult your own healthcare provider if you have a health problem or medical condition.