A member asked:

What causes mental retardation?

A doctor has provided 1 answer
Dr. Johanna Fricke answered

Specializes in Pediatrics - Developmental and Behavioral

There are several : 100's of causes of Intellectual Disability beginning with inherited mutant genes & genetic accidents that occur during egg & sperm formation; epigenetic factors like viruses that alter function but not sequence or structure of genes; teratogens like alcohol, tobacco & drugs from 3 weeks after conception till term & beyond; maternal illnesses, , etc. See pediatrics.med.nyu.edu for much more.

Answered 4/10/2018

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