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Women With O Blood Type May Struggle to Conceive

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Telegraph: Scientists have discovered for the first time that a woman's blood group could influence her chances of getting pregnant.

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Researchers who tested a group of women seeking fertility treatment found those with the blood type O appeared to have a lower egg count and poorer egg quality than others.

By contrast those with blood type A seemed to have more and better quality eggs.

The findings could lead to women with type O blood being advised to try for a baby earlier, but experts said much more research was needed before such a step was taken.

O and A are the two most common blood groups in the British population: some 44 per cent are type O and 42 per cent are type A.

The study of 560 women, whose average age was just under 35, found that those with blood type O were more likely to have higher levels of 'follicle stimulating hormone' (FSH) than those with type A.

Fertility experts regard a high FSH level as a key indicator of having a low egg count, which is known as "diminished ovarian reserve".

FSH is naturally produced by the body to stimulate the follicles in the ovaries which produce eggs.

As a woman's ovaries run out of eggs in her 30s and 40s, production is stepped up to encourage more follicles to be made.

The study found that women who were blood type O were twice as likely to have an FSH level above 10 - commonly regarded as the threshold between normal and raised levels - as those in any other blood group.

For complete story, go to: Telegraph

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5 comments so far | Post a comment now
M.J. Wright October 27, 2010, 8:57 AM

I am O+ and I have always been a fertile Murtle.

KS October 27, 2010, 10:10 AM

I am an O blood type and after four children that were conceived after my husband blinked twice while looking at me sideways, I’d say they may not have considered other contributing factors.

TW October 27, 2010, 11:23 AM

Strange… I’m O+, with 4 children living and 1 miscarriage.

Vickie November 1, 2010, 7:36 PM

O+ mama here. I have six kids with the youngest being born 26 years after the first! No fertility problems or female health issues in my entire life. I think this study is flawed. The only group studied are patients at fertility clinics seeking help. This is not a proper control group. What about the many fertile O+ people that never visited a fertility clinic because they were fine and conceived easily over many decades?

Vickie November 1, 2010, 7:37 PM

O+ mama here. I have six kids with the youngest being born 26 years after the first! No fertility problems or female health issues in my entire life. I think this study is flawed. The only group studied are patients at fertility clinics seeking help. This is not a proper control group. What about the many fertile O+ people that never visited a fertility clinic because they were fine and conceived easily over many decades?


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