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Global Developmental Delay
What are the causes?
The most common causes of GDD are chromosome and genetic abnormalities such as Down syndrome and fragile X syndrome (see entry - Chromosome disorders) or abnormalities with the structure or development of the brain or spinal cord such as cerebral palsy or spina bifida. Other causes can include prematurity – being born too early (see entry - Prematurity and sick newborn),
infections (such as congenital rubella or meningitis) or metabolic
diseases such as having an underdeveloped or underactive thyroid gland
(hypothyroidism) (see entry -Metabolic disorders).
There are a number of tests that can be done to identify the underlying
cause of GDD and sometimes these causes can be treated to cure the
developmental delay, or at least to prevent it worsening. However,
often the cause is never determined.
Background
| How is it treated? 
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