[Spontaneous recanalization of the vas deferent after vasectomy: report of 2 new cases. Bibliographic review]

Arch Esp Urol. 2004 Sep;57(7):743-5.
[Article in Spanish]


Objectives: Vasectomy is a low morbidity and high efficacy surgical method. A small percentage of cases may have paternity after surgery as a complication.

Methods: We reviewed all patients who underwent vasectomy at our department from 1995 to 1999 (n = 1492), defining technical failure as pregnancy or no disappearance of spermatozoids in the follow-up sperm analysis.

Results: We found 2 cases; one of them did not have a negative sperm test after three months, the other one's wife became pregnant after previous azoospermia. Both patients showed granulomas in the pathologic report after a second operation.

Conclusions: Vasectomy is a surgical technique that may have a failure rate close to 2%. Paternity after the operation may appear even after several years. Several authors report the existence of granulomas in those cases in which spontaneous recanalization appears. In our series it was a constant.

Publication types

  • English Abstract
  • Review

MeSH terms

  • Follow-Up Studies
  • Humans
  • Male
  • Treatment Failure
  • Vasectomy*