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Do You Still Produce Sperm After A Vasectomy?

Do You Still Produce Sperm After A Vasectomy?

In this latest blog post, we address the much-asked question, “Do you still produce sperm after a vasectomy?” Throughout this post, we will dive into the process of sperm production, uncover how vasectomy affects fertility, and examine the changes in sperm quality and quantity after the procedure.
By providing a comprehensive understanding of spermatogenesis and the impact of vasectomy on sperm transport, we aim to dispel common misconceptions and offer valuable insights for those considering this highly effective form of birth control.

Pre-Vasectomy: How is Sperm Produced?

Sperm production, or spermatogenesis, takes place within the testicles in structures called seminiferous tubules. It consists of three main stages. First, sperm stem cells divide and differentiate into primary spermatocytes. These cells undergo meiosis, forming secondary spermatocytes and eventually spermatids.
Sperm nurse cells, known as Sertoli cells, provide support and nourishment and manage sperm stem cells throughout this process. Next, spermatids mature and develop essential structures, such as the acrosome and flagellum. Finally, during spermiogenesis, spermatids become fully mature sperm cells (spermatozoa), which are transported to the epididymis for further maturation and storage.

what happens to sperm after vasectomy
Ejaculation will not look or feel any different after having a vasectomy.

Post-Vasectomy: What Happens to Sperm Production?

Even after a vasectomy, the testicles continue to produce sperm. The primary function of the testicles is to generate sperm cells and the male hormone testosterone. The vasectomy procedure, however, interrupts the pathway of sperm transport by surgically sealing the vas deferens.

As a result, the sperm produced in the testicles cannot mix with the seminal fluid during ejaculation, rendering a man sterile. Despite this change, sperm production remains relatively unaffected after a vasectomy. The sperm that cannot be transported is reabsorbed by the body through a natural process called phagocytosis.

Sperm Quality and Quantity: Changes After Vasectomy

While vasectomy primarily impacts sperm transport, it is important to understand how the procedure affects sperm quality and quantity. Studies have shown that there is no significant change in sperm morphology or motility following a vasectomy. The procedure does not alter the overall health or functionality of the sperm produced in the testicles.

Regarding sperm quantity, the actual number of sperm produced is also relatively unaffected by a vasectomy. However, the sperm concentration in the ejaculate is virtually zero after the procedure. The minuscule number of sperm that may be present in the semen immediately following the surgery are residual sperm left in the reproductive system, which will eventually be cleared.

do you still produce sperm after a vasectomy
If you are experiencing any pain or discomfort after having a vasectomy you should consult your doctor.


Having a vasectomy does not impair sperm cell quality or quantity; rather, it prevents sperm from being released in the ejaculate. This distinction is essential, as it highlights the targeted and localised nature of the procedure, which primarily aims to obstruct sperm transport without disrupting any other aspects of male reproductive function.

How to book a vasectomy with MSI

If you’d like to contact us to ask any questions or address any concerns you may have, you can fill out our online contact form. Or if you’re ready to book your vasectomy, you can fill out our online booking form.


If you have any more questions about whether you still produce sperm after a vasectomy or if you’d like any more information on any of the other services, please don’t hesitate to contact us today. In the meantime, check out our FAQs, which may be able to provide you with the additional information you’re looking for.

Resuming a sexual activity after a vasectomy typically depends on individual comfort and recovery. Most men can engage in sexual activity within one week following a vasectomy procedure. However, it is essential to use alternative contraceptive methods until a semen analysis confirms the absence of sperm in the ejaculate, which may take several months.

A vasectomy’s effectiveness as a contraceptive is not immediate. It may take several months for residual sperm to be cleared from the reproductive system. During this period, alternative contraception should be used to prevent unintended pregnancies. A vasectomy is considered effective once postoperative semen analyses confirm the absence of sperm in the ejaculate.
Although vasectomy is generally safe, it carries some risks and potential complications, such as bleeding, infection, or chronic pain. Discussing these risks with your healthcare provider and following post-operative care instructions can help minimise complications.
A vasectomy does not negatively affect sexual performance or desire. The procedure targets sperm transport without impacting testosterone levels or other aspects of sexual function. Most men experience no change in their sexual drive, erection, or orgasm following a vasectomy, and the procedure does not alter the volume or appearance of the ejaculate.
Yes, a vasectomy reversal is possible; however, the success rate of reversal procedures varies depending on factors such as the time elapsed since the vasectomy and the surgeon’s expertise.
Yes, as the open-ended vasectomy offers a vehicle for sperm drainage after the procedure. Leaving one end open permits sperm to be absorbed back into the body, which can mean less postoperative discomfort as there is no immediate pressure back-up to the testicles.
About the Author

About the Author

Dr Justin Low

Justin received his medical degree from the University of Sydney in 1987 and completed the RACGP Family Medicine Program (FMP) in 1991. He became a Fellow of the Royal Australian College of General Practitioners in 1993. He has performed over 9000 vasectomies since 2011 during which time he developed the MSI No Scalpel Open Ended technique with painless needle technique. He is responsible for training an quality assurance of MSI Vasectomy services across the country.

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