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Whenever a foreign particle enters into someone's body, it is attacked by the white blood cells. I just want how it is that, when sperms enter the female body, they are not attacked by the the woman's immune system?


marked as duplicate by MattDMo, Chris, One Face, J. Musser, dustin Jan 31 '15 at 17:20

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Studies show semen does mount a considerable immune response in the female mucosa, however:

Seminal plasma redirects the differentiation of human dendritic cells (DCs) toward a regulatory profile. By promoting a tolerogenic profile in DCs, seminal plasma might favor fertility, but might also compromise the capacity of the receptive partner to mount an effective immune response against sexually transmitted pathogens.

Semen promotes the differentiation of tolerogenic dendritic cells.


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