MayoClinic.com Health Library - Sperm: How long do they live after ejaculation?

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How long do sperm live after ejaculation?

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Sperm ejaculated into a woman's vagina remain alive in the mucus of the cervix and are able to fertilize an egg for three to five days. Sperm ejaculated outside the body usually live only a few hours.

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Last Updated: 03/09/2006

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Sperm: How long do they live after ejaculation?

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