Birth Control Pills - What You Need To Know
What exactly are birth control pills, and just how can they work (mechanism of action)? Oral contraceptives (birth control pills) are medicines that prevent pregnancy. They're one system of birth control. Oral contraceptives are hormonal preparations that could have mixtures of the hormones estrogen and progestin or progestin alone. Combinations of estrogen plus progestin prevent pregnancy by inhibiting the release of the stress hormones luteinizing hormone (LH) and follicle stimulating hormone (FSH) from the pituitary gland in the human brain. FSH and LH play crucial roles in the improvement of the egg and planning of the coating of the uterus for implantation of the embryo. Progestin also would make the uterine mucus which surrounds the egg harder for sperm to penetrate as well as, consequently, for fertilization to occur. In certain females, progestin inhibits ovulation (release of the egg). You will find various kinds of combination birth control pills which have estrogen