Rhythm method is as effective as the diaphragm, cervical cap and condom. It is used in conjuction with the basal body temperature readings.
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Usage of condoms does not require the visit to the doctor and the condoms are made of soft rubber and they are designed to fit as a sheath over the penis. They are of less cost and are the preferred method of contraception for many couples, since they require the least advance preparation of all the methods except the oral contraceptive and the IUD.
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Cervical caps and the diaphragms are the mechanical sperm barriers. The diaphragm and cervical cap must be fitted to the size and shape of the female reproductive organs at the opening of the uterus.
Working of the cervical cap:
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IUD or intrauterine contraceptive device is a plastic or metal coil inserted in the uterus. A plastic coil can be produced cheaply and can be easily inserted by the doctor with a syringe like device. The cost will be more for the patient due to follow up examinations and related care.
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Oral contraceptives or the pills ranks second to the sterilisation as a birth control method. Oral contraceptive pills are made of synthetic sex hormones and are manufactured by the pharmaceutical companies from substances found in plant materials such as Mexican yams.
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Gonads consists of both male testicles and female ovaries.
Four hormones are secreted by the gonads: They are
Each sex has a predominance of a one or the other pair of hormones. Males have a small amount of female hormones and females consists of a small amount of male hormones.
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