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Medical Encyclopedia

Birth control pill - series: Birth control pill

Birth control pill - series Illustrations: Normal female anatomy FSH and LH from pituitary gland Release of estrogen Release of LH Birth control pill Progestin in pill

The lower levels of estrogen in birth control pills supress FSH and LH "fooling" the pituitary gland into thinking a woman is pregnant. Ovulation will then not occur which prevents pregnancy.

Update Date: 5/6/2007

Updated by: Rachel A. Lewis, MD, FAAP, Columbia University Pediatric Faculty Practice, New York, NY. Review provided by VeriMed Healthcare Network.

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