MSD Manual

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Some Complications of Down Syndrome

Some Complications of Down Syndrome

Body System

Complication*

Blood

Brain

Delayed speech and motor skills

Digestive tract

Malformed intestines

Endocrine system

Eyes and ears

Growth

Heart

Muscles and bones

Unstable connections between the first 2 bones in the neck

Loose joints

* Not all complications are present in each person.