A member asked:

Teratogens are most damaging during what stage of development?

9 doctors weighed in across 2 answers
Dr. Carrie Cannon answered

Specializes in Family Medicine

First trimester: In early pregnancy when the embryo is transforming itself into the fetus with all the complex systems and organs is the most dangerous time for exposure to teratogens.

Answered 11/7/2014

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First trimester: when all of the organ systems are forming is the most dangerous, but they should be avoided all during pregnancy,

Answered 1/13/2015

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