Assertion: vasectomy | /r/HasProperty | performed sperm-free
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text: Examples include: (1) a man whose vasectomy was performed in 1988 and whose semen was sperm-free three months later got his wife pregnant in 1991 and his semen at that time showed live sperm (she never got pregnant again and he returned for a vasectomy reversal in 2005 at which time he was again sperm-free), (2) another patient whose vasectomy was performed in 2000 had no sperm in his semen two months later, but his wife became pregnant nearly 4 years later and a semen check revealed a very low sperm count, (3) a man whose wife became pregnant about 16 months after a vasectomy and negative semen check (she miscarried, so it did not result in a live birth), and (4) a man whose vasectomy was performed and whose semen was sperm-free in early 2005 got a partner pregnant in late 2006; no sperm could be found in his semen even then, but DNA tests confirmed his paternity (the veritable "one got through").