Dr. Le-Bucklin’s Answer:

Twins are no more likely to have autism than the general population. The exception is if a twin has a co-twin with autism. Because autism can run in families, twins are more likely to develop autism if their co-twin has it. However, being a twin, per se, does not necessarily increase one’s risk of autism if there are no affected family members.

Note: I was recently interviewed by Lani, the mother of triplets and co-founder of the Multiples and More Blog Network. This question was from our interview.

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Khanh-Van Le-Bucklin