Birth Control Is Defined As Various Ways Used To Prevent Pregnancy Fro

Birth Control is defined as various ways used to prevent pregnancy from occurring. Birth Control has been a concern for humans for thousands of years. The first contraception devices were mechanical barriers in the vagina that prevented the male sperm from fertilizing the female egg. Other methods of birth control that were used in the vagina were sea sponges, mixtures of crocodile dung and honey, quinine, rock salt and alum. We have come a long way from past time times of contraceptives, although some of the same concepts are still used. The least effective form of birth control used today is The Natural Method. This method is also the cheapest because the woman monitors her menstrual cycle. The average cycle is 28 days, ovulation occurs 14 days prior to the woman's period. She then must avoid sex or use a method of contraception on her fertile days. The effectiveness of this method is around 72%. This methods is also one of the hardest method because the woman must maintain a good record of her menstrual cycle. Another form of birth control are spermicidal jelly, cream or foam. Spermicide can be used without medical supervision, and must be used with each act of intercourse. These have no side affects but must be used exactly according to instructions. Spermicides can be up to 94% effective if used correctly. Contraceptive pills or oral contraception are a common form of contraception for women. They contain two hormones, oestrogen and progestogen, which prevent an egg from being released by a woman's ovary each month. There are several different types of pill so if one does not suit you then another one might. It can reduce pre-menstrual syndrome (PMS) and period pain. There is evidence that the pill offers some protection against cancer of the uterus and ovaries. You don't need to worry about any devices or spermicides and it does not interfere with spontaneity of sex. A full medical history is essential, as this pill is not suitable for women who have certain conditions such as high blood pressure, circulatory disease, and diabetes. Those women over 35 years who smoke or are overweight may be advised to use another method of contraception. The combined pill is not reliable if taken over 12 hours late, or after vomiting and diarrhea. It may have some side effects such as nausea, headach es and weight gain. Some drugs, such as antibiotics may affect its reliability. Contraceptive pills do not protect against sexually transmitted infections and HIV. If taken correctly the pill is 99% effective. The diaphragm or cap is a circular dome made of rubber, which is fitted by the woman over her cervix before sex. It acts as a barrier to stop sperm getting through to the uterus. It should be used with a spermicide cream or jelly, which contain a chemical that destroys sperm. These must be worn for a few hours after sex before it can be removed. The effectiveness of this is 87%. Male condoms are made of very thin latex or plastic and work by being placed over a man's erect penis. They act as a physical barrier and trap sperm at the point of ejaculation. Condoms are readily available from chemists and free from family planning clinics. Women can carry them as well as men. They help to protect against cancer of the cervix and reduce the risk of sexually transmitted infections, including HIV.The male condom has to be put on the penis as soon as it becomes erect and before any contact takes place with the vagina. They also have to be used with care as they can slip off or split. Men need to withdraw as soon as they have ejaculated and be careful not to spill any semen. Condoms should never be used with oil based products such as Vaseline and suntan oil, as these will damage the rubber. They are 94% - 98% effective depending on how correctly they are used. Female condoms are made of thin polyurethane plastic and work by being placed in the vagina also covering the area outside, to stop sperm from entering the vagina. A female condom can be put in any time before sex and has many of the advantages