Medical Encyclopedia

Medical Encyclopedia

Birth control pill - series: Progestin in pill

 Progestin in 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 progesterone in birth control pills creates a thick cervical mucus making it difficult for sperm to reach the uterus. It also impedes an egg from attaching itself to the uterine lining (endometrium) because of changes in the cellular structure of the lining.

    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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