The use by women of synthetic progestogen drugs, which are often combined with synthetic oestrogens, to prevent pregnancy.
These drugs suppress ovulation and make cervical mucus thick and impenetrable to sperm.
They also cause thinning of the endometrium (lining of the uterus), which reduces the chance of a fertilized egg implanting successfully.
The best-known form of hormonal contraception is the contraceptive pill (see oral contraceptives).
The hormones can also be given as contraceptive implants under the skin, by injection (see contraceptives, injectable), or be released by IUDs.... contraception, hormonal methods of
Methods of avoiding conception based on attempts to pinpoint a woman’s fertile period around the time of ovulation, so that sexual intercourse can be avoided at this time. The calendar method is based on the assumption that ovulation occurs around 14 days before menstruation. Because of its high failure rate, it has been largely superseded by other methods. The temperature method is based on the normal rise of a woman’s body temperature in the second half of the menstrual cycle, after ovulation has occurred. The woman takes her temperature daily using an ovulation thermometer. Sex is considered to be only safe after there has been a sustained temperature rise for at least 3 days.
The cervical mucus method attempts to pinpoint the fertile period by observing and charting the amount and appearance of cervical mucus during the menstrual cycle.
Recognized changes in the mucus occur before and often at ovulation.
The symptothermal method combines the temperature and cervical mucus methods.... contraception, natural methods of
Treatment given because its effectiveness has been observed in previous, similar cases rather than because there is an understanding of the nature of the disorder and the way the treatment works.... empirical treatment
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