How IUDs work Improved materials and design eventually led to (IUD) intrauterine device acceptance as a means of contraception. For years, it has been recognized as a safe and efficient with peak sales in the U.S. between 1965 and 1973.
But all that changed in 1976 when the Dalkon Shield, a type of IUD was removed from the U.S. market following the death of 17 women who developed severe pelvic infections. Other women become infertile or have fertility problems.
"In the process, women were afraid and manufacturers, all but two IUDs were voluntarily withdrawn from the U.S. market and the percentage of American women using the devices fell 10 percent to less than one percent those who use birth control, "revealed Deborah Franklin in Health magazine.
But the tragic history of the Dalkon Shield should not discourage women using intrauterine devices for today's models are better in terms of safety and effectiveness. As Franklin said of health:
"Most experts say it's a big mistake to visit the sins of the Dalkon Shield IUD others that have been proven safe in hundreds of thousands of women worldwide. A study by the Organization World health of more than 22,000 women who use IUDs are recovering only a slight increase in pelvic inflammatory disease. And the increased risk was primarily in the first 20 days after insertion. The researchers now want to doctors to prescribe antibiotics at the time of insertion to bypass early infections. "
How does the IUD? Nobody knows for sure. Once the device is inserted into the uterus by a doctor, apparently it creates a slight inflammation, which disrupts the benign uterine environment. This prevents sperm from reaching either the egg or stops the fertilized egg implanted.
The pro-life groups say that if the IUD does it, making it an abortifacient. But current medical findings say otherwise. From the looks of it, the IUD prevents pregnancy by reducing the number of sperm entering the egg does not abort in fertilized eggs. This was emphasized by Irving Sivin, senior partner at the Center for Biomedical Research Council of the population in the U.S. health alert.
"The analysis and other techniques have not found evidence of fertilization IUD users. It appears that the IUD works by decreasing the number of sperm reaching the oviduct and their capacity to fertilize the eggs. Similarly, Some studies have shown that fewer eggs were found in the oviduct IUD users versus non-users, "said health alert.
"Whatever the answer, an IUD does not cause abortion or early creation of a low grade infection of the uterus. Both occur in a small percentage of women with intrauterine devices but they are not related to its contraceptive properties, "said Dr. Niels Lauersen, a diplomat of the American Board of Obstetrics and Gynecology and Steven Whitney" It's Your Body: A Woman's Guide and gynecology. "(Next : Problems with the IUD).
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Posted on February 26, 2010.