While it is true that the incidence of epididymal obstruction increases with time after vasectomy, partial or total epididymal blockage is actually very common, even in men only a few years after vasectomy. Failure to address this at the time of surgery will result in higher failure rates, and even those who have sperm after surgery will tend to have much lower fertility due to poor sperm motility.
This is why it is important that your reversal surgeon have extensive experience and expertise with epididymal reconstruction, even if your vasectomy was only performed a few years ago
