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).
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