6:32 pm - 07/18/2007

How much sperm in precum?

I've always been taught that pre-cum has loads of sperm, but I've also heard that those using the pull-out method perfectly in clinical studies have a really low rate of pregnancy like 4% or something.  Note, I am not advocating this method, it's just something I'm curious about.
oopsiedaisies7 19th-Jul-2007 01:45 am (UTC)
I've read that precum has no sperm in it naturally, but if the man has ejaculated recently, leftover sperm in the urethra is mixed in with the precum.

So, I'm assuming that the amount of sperm in precum varies. Sometimes there could be almost none, and other times there is definitely enough for the risk of pregnancy to be significant. (Of course, it only does take one of those little guys, so I guess the risk is significant regardless.)

I dunno, this comment probably didn't help at all, haha. Here's some wikipedia for ya! :

http://en.wikipedia.org/wiki/Coitus_interruptus
jocelina 19th-Jul-2007 01:45 am (UTC)
Actually, pre-ejaculate on its own has no sperm in it. If a man has recently ejaculated and hasn't yet urinated or bathed, there may be some leftover sperm from that ejaculation hanging around in his urethra and could then mingle with pre-ejaculate. This Go Ask Alice! Q&A explains it pretty well I think. :)
starzysky 19th-Jul-2007 04:48 am (UTC)
It depends.

If the guy has urinated since the last time he orgasmed, pre-cum has virtually no sperm in it whatsoever.

If the guy just came & hasn't urinated yet, there can definitely be residual sperm in his pre-cum. I don't know exact numbers, but it's much lower than in actual semen. So low, in fact, that it would be hard to get pregnant from it... but not impossible.
my_neighborhood 19th-Jul-2007 05:02 am (UTC)
My sex-ed program taught me that pre-cum has an extremly high concentration of sperm. VaginaPagina and the hundreds of resources it's given me has taught me they lied :)
heavenkittykat 19th-Jul-2007 05:27 am (UTC)
the low rate of pregnancy comes with perfect use, the typical use has more than 30% failure rate.

but like what the others said, precum, on its own do not contain sperm. This fluid comes directly from the males' lubrication production glands and does not collect sperm. However, if some sperm remains in the urethra from previous intercourse of masturbation, the lubrication can pick up these amount of sperm and carry it.

Some sources indicated that if a man has urinated, then the amount of sperm from precum is almost nil. However, as far as I know, no clinical study has been done to prove this theory.
This page was loaded Jul 24th 2014, 7:20 pm GMT.