HSC 261 Lecture Notes - Lecture 21: Progestin, Female Condom, Endometrium
18 Nov 2016
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Failure rates: average couple using a birth control method will become pregnant in a given year. Choosing a birth control method: birth control, mini-pill, nexplanon. Used up to 3 years: depo-provera. Hormone-based: constant dose combination pill, triphasic pill, extended cycle pill. 4 periods a year: progestin-only pill. Barrier methods: condom, female condom, diaphram: latex dome, cervical cap. Thimble shaped latex cup: fem cap, vaginal shield, vaginal spermicides. Intrauterine devices: act as a foreign body in uterus, alters endometrium lining, thicken cervical mucous. Emergency contraception: taken within 72 hours, 24 hours - 95, 72 hours - 75%1. Sterilization: most effective, leading method in us, reversal about 50% effective. Breastfeeding: amenorrhea is common for a brief period after birth while breastfeeding, 80% ovulate before first period, unreliable. Withdrawal: before ejaculation, difficult to judge, anxiety may lower pleasure, cowper"s gland fluid may carry sperm, any sperm on vulva may travel into vagina - unreliable. New directions in contraception: for men.
