Previous studies have linked douching with pelvic inflammatory disease and ectopicpregnancy. The researchers also found a relationship between douching and cervical cancer, reduce fertility, HIV and other sexually transmitted diseases.
But a new study of the National Institute of Environmental Health Sciences was the first finding of the increased risk of ovarian cancer due to vaginal treatment has been carried out by millions of American women.
"While the majority of physicians and the American College of Obstetricians and Gynecologists strongly recommends that women don't do douching, still many women who continue to do so, because it assumes that douching has health benefits, such as increased positive hygiene," said Joelle Brown, a Professor of epidemiology at the University of California, San Francisco.
Ovarian cancer is known as the "silent killer", because women often do not experience symptoms until the disease progressed to an advanced stage.
An estimated 20,000 American women are diagnosed with ovarian cancer and approximately 14,500 die each year, according to the Center for disease control and prevention (CDC).
New analysis in the journal Epidemiology involves more than 41,000 women across the U.S. and Puerto Rico since 2003. Participants aged 35 to 74 years.
In July 2014, researchers calculate the 154 cases of ovarian cancer among the participants. Women who reported douching was found nearly twice the risk of ovarian cancer.
The vagina can naturally clean themselves. Spray cleaners or other mixtures in the neck of the vagina only disrupt the balance of moisture.
DOUCHING can cause an overgrowth of harmful bacteria, causes yeast infections, and push bacteria into the uterus, ovaries and fallopian duct, according to women's Health at the U.S. Department of Health and Human Services (HHS).
However, a quarter of women, between the ages of 15 and 44 still do douching, HHS says.
Researchers assess, most women learn to do their mothers from douching. They do it because they see it as an essential part of good hygiene, to clean her pussy before and after sex.
In fact, douching is a cosmetic product, which means that the U.S. Food and Drug Administration does not require manufacturers to test their products are Douches for safety.
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