By Dr. Oliver Pack (Medical Doctor – Reg. No. 030308944).
One of the most commonly used contraceptive methods for men, besides condoms, is a vasectomy — a surgical procedure designed to cut or block the vas deferens, the tubes responsible for carrying sperm from the testicles to the urethra. This method is nearly 100% effective in preventing pregnancy, although in many cases it cannot be reversed.
Vasectomy is currently the most widely used permanent contraceptive method among couples: it accounts for 60% of procedures compared to 40% for tubal ligation.
If vasectomy reversal surgery is unsuccessful, sperm can still be retrieved directly from the testicles to fertilize an egg. Semen cryopreservation before a vasectomy allows sperm to be used later in future in vitro fertilization (IVF) or artificial insemination treatments.
A vasectomy can sometimes be reversed through a surgical procedure known as a vasovasostomy, although it is not always successful. In these cases, assisted reproductive techniques can be used to retrieve sperm directly from the testicles and achieve pregnancy.
Vasovasostomy is a surgical procedure that reconnects the vas deferens that were cut during the vasectomy. Depending on the type of surgery and the amount of time that has passed since the vasectomy, the effectiveness of the procedure may vary.
If the reversal does not work and the man wishes to restore fertility, there are different methods available to achieve pregnancy.
Before undergoing a vasectomy, some men choose to freeze a semen sample that can later be used in assisted reproduction treatments such as IVF or artificial insemination (AI).
If semen was not cryopreserved beforehand, sperm can still be obtained directly from the testicles through aspiration or testicular biopsy. This is a widely used option for men seeking to have children after a previous vasectomy or for those with sperm quantity or quality issues. It is a simple procedure that usually offers very good results.
The retrieved sperm are then used to fertilize eggs, and one of the resulting embryos is transferred into the woman’s uterus.

Semen cryopreservation before a vasectomy makes it possible to preserve sperm for future assisted reproduction treatments. Thanks to techniques such as in vitro fertilization (IVF) or artificial insemination, many men can still achieve pregnancy even after undergoing a vasectomy.
The female equivalent of a vasectomy is tubal ligation, a contraceptive procedure that blocks the fallopian tubes to prevent eggs from meeting sperm, thereby avoiding fertilization. In 2011, eight out of every ten contraceptive surgeries in Spain were tubal ligations. By 2023, this trend had completely reversed, and vasectomies now account for 60% of these procedures.
Men have become increasingly aware of reproductive health and more involved in family planning decisions. This shift reflects greater equality in contraceptive responsibility and improved education regarding reproductive health options available to both genders.
Additionally, vasectomy is a less invasive procedure than tubal ligation, meaning recovery is generally faster and involves fewer complications, making it an increasingly attractive option for couples seeking permanent contraception.
No. A vasectomy does not alter male hormone production or testosterone levels.
Yes. Through aspiration techniques or testicular biopsy, sperm can be retrieved for assisted reproduction treatments.
Yes. Retrieved sperm can be used in in vitro fertilization treatments.
The chances of success depend on the time elapsed since the procedure and the characteristics of each patient.