Men who have undergone a vasectomy and desire sperm in their ejaculate are candidates for the vasectomy reversal.

A vasectomy reversal is an operation that re-establishes a connection between the two ends of the vas deferens (vasovasostomy) that were separated at the time of the prior vasectomy.  Sometimes the vas deferens is reconnected to the epididymus (epididymovasostomy) because of a secondary obstruction in the epididymus.