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What happens at the 20 week scan?

Between 18 and 21 weeks, you’ll be offered your 20 week scan. This screening looks out for a number of conditions which means your healthcare team can make better decisions about how to look after you and your baby going forward.

The 20 week scan looks out for various medical conditions including anencephaly, open spina bifida, cleft lip, diaphragmatic hernia, gastroschisis, exomphalos, serious cardiac abnormalities, bilateral renal agenesis, lethal skeletal dysplasia, Edwards’ syndrome and Patau’s syndrome.

Unfortunately, screening tests are not perfect. Some people will be told they or their baby has a higher chance of having a health condition when they in fact do not have the condition. And a few people will be told they or their baby has a low chance of having a health condition when they do have the condition.

It’s always up to you whether you have a screening test or not. But remember - information is power. 💪 So if you’re not sure about anything or would like to know more, just ask your midwife or doctor!