Sperm cells mature in the epididymis, a 20-foot-long series of thin, tightly coiled tubes. Sperm take from two to 12 days to pass through the epididymis and to develop the ability to swim and ...

A vasectomy reversal is a surgical procedure that reconnects the two ends of the vas deferens that were separated during a prior vasectomy. In some cases, the vas deferens is reconnected to the ...