BBC News – Blood group ‘affects fertility’

A woman’s ability to conceive in early middle age may be influenced by her blood type, according to research.

The US study of 560 women undergoing fertility treatment found that those with type “O” blood had chemical signs linked to low egg numbers.

There is no clear explanation for the results, presented to the American Society of Reproductive Medicine conference in Denver.

Approximately 44% of the UK population has type “O” blood.

The researchers, from Albert Einstein College of Medicine in New York, and Yale University, looked at the levels of a chemical called follicle-stimulating hormone (FSH) in the women, who had an average age of 35.

Full story:  BBC News – Blood group ‘affects fertility’.


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