Sexing before 16 weeks in unreliable

This is why sexing before 16 weeks is unreliable.
As you can see each baby has what looks like a penis.
The “penis” of the boy points up and the “Clitoris” of the girl points down.
The reason sexing is only 50% reliable is that it depends
on the angle of babies bottom and the position baby is in,
also the skill of the sonographer when interpreting the image.

Even at 16+wks there are factors which can cause us to mistake the sex.
Little girls can have swollen labia which can look like boy bits.
Little boys can have undescended testicals making them look like girls.

When sexing your baby we take care to see babies sex from as many angles
as possible and only tell you when we have seen the positive sign for each sex.
When coming for a sexing scan please make sure you have a meal 2+hrs before
scan time then 10mins before something nice & sweet and sugary.
Really important that you arrive with a full bladder this will push baby up and
out of your lower pelvis. Please bring your hospital notes.
If baby is in a bad position or has legs pushed together we may send you out
for a walk.

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