Women who take an aspirin¹ before sex may increase the likelihood of conceiving a baby boy, suggest researchers. 

 

美国的研究人员发现，女性若在性生活前服用阿司匹林，怀上男孩的可能性会增加。

 

In a recent study, women with a history of miscarriages³ were more likely to give birth to a male child after taking aspirin around the time of conception compared with women given a placebo⁴. 

 

In fact, aspirin increased the likelihood of having a boy by nearly a third, reports the Journal of Clinical Investigation⁵. 

 

Previous research showed that recurrent miscarriage² is linked to increased inflammation in the womb. 

 

The theory is that the immune system sees the developing embryo⁶ 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 Britain, there are slightly more female births than males. 

 

External harmful factors, such as stress, pollution or smoking around conception have been associated with a reduction in the number of males, and suggest male embryos⁷ are more vulnerable for some reason.

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