Medical Encyclopedia
Birth control pill - series: Birth control 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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