 The prostate is part of the male reproductive system. A walnut-sized gland located between the male bladder and the penis, the prostate sits just in front of the rectum. The urethra runs from the bladder to the penis, through the center of the prostate. The prostate secretes fluid that nourishes and protects sperm after ejaculation. The milky fluid produced by the prostate – prostatic fluid – makes up around 30 percent of the total fluid ejaculated (the rest is sperm and fluid from the seminal vesicles). Prostatic fluid protects sperm, helping them live longer and be more mobile. It contains a number of ingredients, including enzymes, zinc, and citric acid. One of the enzymes in prostatic fluid is prostate-specific antigen (PSA). After ejaculation, PSA makes thickened semen runnier, helping sperm travel through it more easily, increasing their likelihood of successfully fertilizing an egg. During ejaculation, the prostate squeezes prostatic fluid into the urethra, and it is expelled with sperm as part of semen. This is a key part of male reproduction. Studying the components of prostatic fluid and how it protects sperm could provide new information that can be optimized for male birth control and contraception. Learn more about male contraceptive methods in the research and development pipeline today. And please consider supporting MCI’s work providing advocacy and funding support for the development of new methods of male contraception in order to make “Reproductive Autonomy for All” a reality by donating or exploring other ways to get involved today! (This post was updated on March 5, 2025) Nuts & Bolts: Prostate To learn more about, please visit our series of posts about male reproduction and contraception: For additional terminology related to male contraception and the male reproductive system, please visit our glossary: For additional publications related to male contraception and the male reproductive system, please visit our publications page: The Male Contraceptive Initiative website provides a robust variety of information about the male birth control research and development ecosystem. We recommend visiting the following pages to help enrich your understanding of this critically important field:
2 Comments
pearl odido
12/30/2020 09:18:16 am
Many thanks...could you give us some more knowledge....many thanks !!!!!
Robert Elkins
7/31/2022 09:47:00 am
I'm 78, why do I need the prostate Your comment will be posted after it is approved.
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