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Infertility & Reproduction Health Center

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Are Periods Obsolete?

Women's Health Proponents Recommend Continuous Birth Control Pills

WebMD Health News

March 12, 2003 -- Whether you call it Aunt Flo, the crimson curse, code red, or your monthly visitor, menstrual periods leave many of us feeling bloated and blue. And frankly, surveys suggest, we'd rather not be bothered with them.

The fact is, menstruation, as we know it, could be obsolete. At the very least we may only get a period once a season, several leading women's health experts said Tuesday.

With traditional birth control pill regimens, a woman takes hormones on days one through 21, and she takes a placebo on days 22 through 28. During this time, withdrawal bleeding occurs in a timely fashion, like monthly periods. But taking birth control pills back-to-back with no placebo eliminates a monthly period. These predictable cycles are desired by many women for many reasons including social, recreational, and sexual activities.

"The continuous method provides excellent contraceptive protection -- maybe better than traditional," says Carolyn Westhoff, MD, professor of obstetrics and gynecology and public health at Columbia University in New York. Westhoff spoke at a briefing sponsored by the Coalition for Cycle Freedom of Barr Laboratories, Inc. What's more, the continuous method has been shown to lower risk of breast and gynecological cancers, she says.

For years, some doctors have been prescribing "continuous" birth control pills to treat conditions such as endometriosis, migraine, and iron-deficiency anemia. But once there is an FDA-approved long-interval pill regimen, more women will have the option to control their periods, experts say. One such pill, Seasonale, is being tested by Barr Laboratories. With Seasonale, women take the product for up to 84 consecutive days, followed by seven days of placebo. The regimen is designed to reduce the number of withdrawal periods from 13 to four per year.

It's what women want, Westhoff says.

"Across all age groups in three surveys, women said they would like shorter, lighter, and less painful periods," says. In one survey, three-quarters of women said they would want their periods less frequently -- or never at all, she says.

What's more, more than 90% of women already taking birth control pills say they chose to take them longer then the traditional 21 days to limit the number of times they experienced periods and 94% said their quality of their life improved by doing this.

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