Women who take aspirin before sex are more likely to give birth to a baby boy.
In a recent study U.S. researchers found women with a history of miscarriages were more likely to give birth to a male child after taking aspirin around the time of conception compared with women given a placebo, reports Daily Mail.
In fact, aspirin increased the likelihood of having a boy by nearly a third, reports the Journal of Clinical Investigation.
Previous research showed that recurrent miscarriage is linked to increased inflammation in the womb.
The theory is that the immune system sees the developing embryo as a foreign body, attacking it with inflammatory compounds and immune cells.
This inflammation may further reduce the likelihood of the woman having a boy because male foetuses are thought to be more vulnerable.
In the latest study, researchers at the Eunice Kennedy Shriver National Institute of Child Health and Human Development in the U.S. gave 1,228 women who had a history of miscarriages a low-dose aspirin to take before sex or a placebo pill (folic acid) for as long as they were attempting to get pregnant.
Thirty-one per cent on aspirin had a boy, compared to 23 per cent on the placebo. And those on aspirin who had boys had reduced inflammation, suggesting the drug had an effect.
Aspirin before conception seems to ensure the chance of a male embryo being rejected is reduced, says Professor Simon Fishel, president of CARE Fertility clinics.
‘It is a very interesting conclusion and more studies are needed to confirm if it is a potential solution to the apparent excess of female babies for women with evidence of inflammation.
‘Importantly, it relates only to women who have had miscarriages and evidence of inflammation. It does not have any bearing on sex ratios in normal conceptions where aspirin will not increase the chances of having a boy.’
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