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Which are the causes of mental retardation?

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There are several hundred possible causes of mental retardation. They include genetic conditions (e.g., Down syndrome , fragile X syndrome); prenatal problems (e.g., fetal alcohol syndrome , rubella , malnutrition); problems apparent at birth (e.g., low birth weight and prematurity); and problems that occur after birth (e.g., injuries and childhood diseases like measles that can lead to meningitis and encephalitis).

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Get more facts and information about mental retardation . Or, view the full encyclopedia entry from The Columbia Encyclopedia, Sixth Edition.

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