Question: Sperm in Precum?


Hi, a few semesters back I was in Dr. [So and So’s] courses at SFSU. You were my aide, I’m not sure whether you still do teacher’s aid stuff or not but I remember how knowledgeable you were about the topic of human sexuality and I have a longstanding question and debate I need answered by someone who know what they’re talking about. The question is: does men’s prejaculation contain sperm?  I know it comes from a different part and is not manufacutred in the same place but I’m wondering whether it is in fact produced with a sperm count. If you could help me at all that would be wonderful! Thanks

Yes, it *can*. Here is why.

Semen is made of two parts: seminal fluid and sperm. Most of seminal fluid originates from the seminal vesicles, followed by fluids from the prostate, bulbourethral (aka Cowper’s) glands and a teeny bit from the testes. A small amount of that fluid contains sperm, somewhere under 10%.

For sperm to survive the urethral journey it must travel in an alkaline instead of acidic environment. Enter the alkaline leaning precum.

Although precum is there to clear it out, and give a little lube love, residual sperm can reside on the tubes and exit with the fluid. One easy solution: pee. Urinating beforehand will kill the straggling sperm. Urinating after ejaculation will kill any straggling sperm. The lesson? Sperm in pre-ejactulate is possible but pee will kill it.  Pregancy from precum is not very probable, in my opinion.

For more fun info on semen, checkout this infographic.

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