Population growth leads to increased fertility and reduced mortality and migration. The prevention methods are encouraging, to control the huge population. Contraception is a voluntary limit on the number of children conceived, especially the planned use of contraceptive methods.
It can be used contraceptives
contraceptives to prevent unwanted pregnancies. There are several ways to unwanted pregnancies, sexually transmitted diseases and even to protect HIV. Some common contraceptives and contraceptive methods, the outer course today, abstinence, birth control pills, cervical caps, condoms, contraceptive films, foams, implants, sponges and suppositories, diaphragm or Depo-Provera contraceptive injection, intrauterine contraceptives are, the patch, the ring, the shield, and the recall.
The seven most effective methods
1.Oral contraceptives. These oral contraceptives are primarily of low-dose synthetic estrogen and progesterone. Their use does not interfere with sexual intercourse. This error rate 0th ave 1-8 percent in the first year, but this is at 0.01 percent when used in combination reduced perfectly .. In particular, the inhibition of ovulation works, but the secondary mechanism involves the thickening of the mucus in the cervix, endometrium, and reduces the variables of sperm transport. If you respond to certain drugs, such as a certain antiseizure drugs and antibiotics, the effects are reduced. Most women can use this safe and non-regular contraceptive discontinuation during the reproductive life.
2. Contraceptive implants. These implants are filled hormone capsules that are inserted into the armpit or the arm of a woman. The contraceptive implant Norplant, the first system, which consists of six flexible silicone capsules. This method is safe and effective as it is reversible and can be used in the long term. It works by thickening the mucus in the cervix and prevents sperm penetration and inhibits ovulation. A woman can fertile again immediately after the removal of the implant.
3. Injections. They contain synthetic hormones which are administered by deep intramuscular injection. This safe, effective and reversible. It works by thickening the mucus in the cervix, preventing the penetration of sperm and ovulation. Fertility again three months after a delay.
4. Female contraception. To prevent these obstacles for women in the vaginal penetration of sperm to prevent pregnancy and vice versa. It works by a physical barrier that blocks the passage of sperm into the uterus. Its effectiveness needs to be further supplemented, when used in conjunction with spermicides. Shortly after stopping a woman's fertility returns.
5.Spermicides. These chemicals, which are inserted into the vagina to kill or stop the sperm.
6 .. Intrauterine devices. This small and flexible means of metal or plastic thatare introduced into the vagina to prevent pregnancy if a woman's uterus inserted through the vagina.
7.Male and female sterilization. do This is a permanent method of contraception for couples who don 't no more children. Female sterilization, ligation name, while male sterilization is called vasectomy.