A vasectomized man has only two options if he wants to be a father again: assisted reproduction techniques like ICSI or vasectomy reversal.
Vasectomy reversal reconnects the tubes (vas deferens) that were cut during vasectomy and where sperm travels until it is ejaculated with semen. This leaves the vas deferens permeable again enabling the presence of sperm in the semen, having the opportunity to seek pregnancy.
The surgical success is about 96%, presence of sperm in semen after surgery with a pregnancy rate of 40 to 50%. The length of the surgery is 2-3 hours and is performed on an outpatient basis.