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A teratogen is any substance or process that may interfere with the normal development of a fetus or cause birth defects.

Teratogens include alcohol, many drugs and medicines, some metals (such as lead or mercury), radiation, and some infectious diseases (such as rubella).

ByHealthwise Staff
Primary Medical ReviewerSarah Marshall, MD - Family Medicine
Specialist Medical ReviewerSiobhan M. Dolan, MD, MPH - Reproductive Genetics

Current as ofJune 4, 2014

WebMD Medical Reference from Healthwise

Last Updated: June 04, 2014
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.