Contraception

Intrauterine devices (IUDs) are a form of contraception which placed directly into the uterus and remained there for several years, to provide a permanent form of birth control. They work by preventing the killing of sperm, either directly on the release of hormones or cause the body to release hormones in the womb. Experience with the implementation of a physician is required, but usually lasts less than an hour. Although almost certainly be adjusted to prevent a pregnancy, and require little care, you are at risk of unpleasant side effects or potentially dangerous.

Significance

Worm was the story of the Rock in 1970, when the Dalkon Shield device a number of complicated pregnancies is sold. However, the worm on the market as a safe and effective method of contraception after the Centers for Disease Control and Prevention. However, they are a choice, only 1 percent of women contraceptives in the United States. They are much more common in other countries, particularly China, where 30 percent of married women of childbearing age and have the equipment used, according to the Johns Hopkins School of Public Health.

Type

Modern spiral for use in the United States are permitted in two forms: the copper-T Mirena coil. Both are small T-shaped device in the uterus is a doctor brought, but differ on the way to prevent pregnancy. Copper-containing devices to stop the possibility of the penetration of sperm fertilize the end of the fallopian tubes, and the presence of the uterus stimulates the release of chemicals kill the sperm can. In addition, copper can be toxic to sperm. Mirena IUS to release a hormone that is directly harmful to sperm and eggs. Both were a success for more than 99 percent, but the Copper T-coil for 10 years or more valid if the Mirena IUD lasts only about five years.

Use

Worm has certain advantages over other methods of contraception. Its high success rate in long-term effectiveness is that they require little attention and allow for greater sexual spontaneity. Users can change the machine every episode, simply by controlling their supply chain, which is by listening to your finger into the vagina. Although the life cycle costs of the medical device can be expensive, the user can save money in the long term, because there are other methods of contraception is needed.

Disadvantages

One of the troublesome side effects, the thread has, especially copper coil T is a long and sometimes painful, can lead to anemia. This can sometimes perforation of the uterus wall, which does not reduce the performance, but can be painful. Mirena coil may cause other side effects, such as ovarian cysts, weight gain, increased blood pressure, acne and decreased sex drive. Both devices can also affect fertility after removal, particularly if they are introduced into the uterus or cause pelvic inflammatory disease. In rare cases it can cause severe damage to challenging the womb into the uterus. In addition, IUDs do not protect against sexually transmitted diseases, women need more protection, which they refer.

Conflicts

Use worm has been criticized by anti-abortion groups fear the destruction of the eggs to fertilize. Supporters of the device prevents the majority view of the sperm passes to reach the egg and the sperm, the egg is unable to perform the insemination. Both the World Health Organization and the American College of Obstetricians and Gynaecologists said the study, the worm can prevent fertilization and abortion. Physicians can use the worm, but as a kind of emergency contraception up to five days after sex, because they might interfere with the commitment of the egg to the uterus.