What are common symptoms of Down syndrome?

The symptoms of Down syndrome vary from person to person, and people with Down syndrome may have different problems at different times of their lives.

Physical Symptoms

Common physical signs of Down syndrome include1,2:

  • Decreased or poor muscle tone
  • Short neck, with excess skin at the back of the neck
  • Flattened facial profile and nose
  • Small head, ears, and mouth
  • Upward slanting eyes, often with a skin fold that comes out from the upper eyelid and covers the inner corner of the eye
  • White spots on the colored part of the eye (called Brushfield spots)
  • Wide, short hands with short fingers
  • A single, deep, crease across the palm of the hand
  • A deep groove between the first and second toes

In addition, physical development in children with Down syndrome is often slower than development of children without Down syndrome. For example, because of poor muscle tone, a child with Down syndrome may be slow to learn to turn over, sit, stand, and walk. Despite these delays, children with Down syndrome can learn to participate in physical exercise activities like other children.3 It may take children with Down syndrome longer than other children to reach developmental milestones, but they will eventually meet many of these milestones.

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