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FAQ196, May 2018

What is marijuana? Marijuana is a plant that contains a chemical called tetrahydrocannabinol (THC). THC can cause relaxation and the typical “high” associated with marijuana use. Marijuana has other chemicals that affect different organs in the body, including the brain, lungs, blood vessels, heart, and liver.


If you use marijuana during pregnancy, you may be putting your health and your fetus’s health at risk.


FAQ170, August 2017

Why is smoking dangerous during pregnancy? When a woman smokes cigarettes during pregnancy, her fetus is exposed to many harmful chemicals. Nicotine is only one of 4,000 toxic chemicals that can pass from a pregnant woman to her fetus. Nicotine causes blood vessels to narrow, so less oxygen and fewer nutrients reach the fetus. Nicotine also damages a fetus’s brain and lungs. This damage is permanent.


American College of Obstetricians and Gynecologists
409 12th Street SW, Washington, DC  20024-2188 | Mailing Address: PO Box 70620, Washington, DC 20024-9998