Oestriol Blood Test, from our experts to you.
Dr Sam Rodgers MBBS, MRCGP

Chief Medical Officer meet our doctors

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What is
oestriol?

Oestriol is a form of oestrogen produced by the placenta. About three to five weeks before labour begins, the amount of oestriol in the placenta increases dramatically.


Is oestriol only
present during pregnancy?

Oestriol is present throughout a woman's lifetime at varying levels. It is commonly linked to pregnancy as that's when it is produced in the most measurable amounts.


What's included?

Hormones
Select profile for more information

Estriol

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