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Vasectomy is a surgical form of male sterilization that involves severing and sealing the vasa deferentia, preventing sperm from mixing with semen during ejaculation. Because a vasectomy does not impact the testes' ability to produce testosterone, hormone levels, libido, and sexual function generally remain unchanged. While vasectomy is highly effective in preventing pregnancy, with a success rate near 99.85%, rare cases of recanalization (spontaneous reconnection) can occur. Although vasectomy...
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Updated: Jul 1, 2026

Optimizing the Modified No-Scalpel Vasectomy Technique
04:47

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Published on: October 18, 2024

[A CASE OF PREGNANCY POST VASECTOMY].

Akiou Okumura1, Hiroshi Kitamura2

  • 1Okumura Clinic.

Hinyokika Kiyo. Acta Urologica Japonica
|June 30, 2026
PubMed
Summary
This summary is machine-generated.

Vasectomy is a surgical contraception method. Recanalization of the vas deferens can lead to pregnancy, highlighting the need for partner consent.

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Area of Science:

  • Urology
  • Reproductive Medicine
  • Surgical Contraception

Background:

  • Vasectomy is a common and effective form of male sterilization.
  • Failure of vasectomy can occur due to recanalization, leading to unintended pregnancies.

Purpose of the Study:

  • To report a case of post-vasectomy pregnancy due to vas deferens recanalization.
  • To emphasize the importance of informed consent for vasectomy, including partner involvement.

Main Methods:

  • A vasectomy was performed under local anesthesia using standard surgical techniques.
  • Bilateral vas deferens ends were ligated without mucosal cautery.
  • Semen analysis was conducted post-surgery to assess effectiveness.

Main Results:

  • Initial semen analysis showed azoospermia (no sperm).
  • Eight months post-vasectomy, the patient's partner became pregnant.
  • Repeat semen analysis revealed motile sperm, indicating vas deferens recanalization.

Conclusions:

  • Vas deferens recanalization is a possible complication after vasectomy.
  • Couples must be informed about the risk of pregnancy post-vasectomy.
  • Informed consent should include both the patient and partner to mitigate litigation risks.