Effectiveness: Nearly 100%
A permanent form of male birth control. A health care provider closes or blocks the spermatic ducts which prevents sperm from leaving the male’s body and cause pregnancy.
Availability: Through health care provider
Cause of Failures: Rarely, the spermatic ducts grow back together again and allow sperm to flow out of the male again – risking pregnancy.
STI Prevention: None
Note: Not immediate. Sperm remains beyond the blocked tubes. Takes about 3 months. A semen analysis shows when there are no sperm in the ejaculate.
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