An official website of the United States government
Here’s how you know
Official websites use .gov A
.gov website belongs to an official government
organization in the United States.
Secure .gov websites use HTTPS A
lock (
) or https:// means you’ve safely connected to
the .gov website. Share sensitive information only on official,
secure websites.
URL of this page: //medlineplus.gov/ency/imagepages/19847.htm
Substance use during pregnancy
Overview
The fetus grows and develops due to the nourishment from the mother via the placenta. Along with nutrients, any toxins in the mother's system may be delivered to the fetus. These toxins often cause damage to the fragile, developing fetal organs. Depending on the organs affected, long-term effects may be severe, including mental problems such as retardation and seizures.
Review Date 12/31/2023
Updated by: Mary J. Terrell, MD, IBCLC, Neonatologist, Cape Fear Valley Medical Center, Fayetteville, NC. Review provided by VeriMed Healthcare Network. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.