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The vasectomy reversal success rate depends on a number of factors, including how and when the original vasectomy was performed. The less time that has elapsed since the vasectomy, the greater the likelihood of viable sperm being restored postoperatively.
Here are some of Dr. McClure’s recent statistics:
In terms of technical success, the following table explains the technical success in relationship to time since vasectomy.
Number of Cases |
Years after Vasectomy |
% with Sperm Post-Op |
100 |
< 10 years |
98% |
150 |
10 - 15 years |
95% |
100 |
16 - 20 years |
90% |
50 |
> 20 years |
75% |
The pregnancy rate that is the functional success depends on a number of factors. After long periods of vasal obstruction, there is often epididymal function resulting in poor motility. The presence of sperm antibodies may also result in less than optimal sperm quality. Female factors are the most significant contributing factor in the difference between technical versus functional success rates. In women over age 36, the success rates are much less.
Revised
August 8, 2006
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