Can an ultrasound detect Down syndrome?

Ultrasound alone cannot diagnose Down's Syndrome, however there are features which can be "soft markers" suggestive of Down's Syndrome.  These include increased nuchal translucency, short femurs, and abnormalities of the heart, bowel and kidneys.
An ultrasound sometimes can indicate an increased chance for Down syndrome, but it cannot identify all babies with Down syndrome. 

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.