Approximately 3,600 women have two healthy ovaries removed each year to protect against the risk of ovarian cancer.
But scientists at the University of Warwick have concluded this benefit is ' date time ' by the increased danger of developing heart disease or cancer that comes with removing both ovaries.
They arrived at this conclusion after studying what happens to a woman's premenopausal British 114.000 in ten years after a hysterectomy.
Those who have both ovaries removed is twice as likely to die of cancer or heart disease as those who have one or it is left intact.
The lead author, Richard Lilford said last night that a hormone produced by the ovaries may have a strong protective effect on women's health.
He added: ' there is good evidence that estrogen protects against heart disease, while there is some evidence of progesterone hormone replacement therapy protects against colon cancer '.
When both ovaries removed, they sink these hormone levels, increasing the risk of heart disease and cancer.
This study offers a difficult choice for those whose family history increases the risk of ovarian cancer.
Kath Pinder, the charity target ovarian cancer, said the withdrawal "may be the only option" to prevent the disease, which kills more than 4,000 women in Britain each year.
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