What are the signs of Down syndrome in newborns?

In newborns, Down syndrome may be identified through:

• Low muscle tone (the baby feels “floppy” when held).
• A flat nasal bridge and small head.
• Upward slanting eyes and small ears.
• A single crease across the palm of the hand.
• Lower birth weight or shorter length.

Doctors usually confirm the diagnosis with a chromosome test (karyotype). It’s important to remember that while physical signs can suggest Down syndrome, only genetic testing provides certainty.

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