What are the effects of secondhand smoke on the fetus when a pregnant woman is exposed to it?

Jul 17, 2024 Source: Cainiu Health
Disease description:

I'm four months pregnant, and people often say that pregnant women should avoid secondhand smoke the most. I'm just curious—what effects does secondhand smoke have on the fetus?

Doctor's answer (1)
Dr. Zhang Lu

Health effects of secondhand smoke exposure on the fetus during pregnancy:

1. Growth restriction: Secondhand smoke may lead to fetal growth restriction and increase the risk of low birth weight, which can trigger a range of long-term health problems.

2. Preterm birth: Smoking or exposure to secondhand smoke increases the likelihood of preterm birth, and premature infants may face more health challenges.

3. Respiratory issues: Fetuses exposed to smoke may be more prone to respiratory infections, asthma, and other respiratory system problems after birth.

4. Birth defects: Exposure to secondhand smoke may increase the risk of certain birth defects in the fetus, such as cleft lip or cleft palate.

5. Neurodevelopmental impairment: Substances such as nicotine may affect the development of the fetal nervous system, leading to learning disabilities, attention deficit hyperactivity disorder (ADHD), or other behavioral problems.

To protect the health of the fetus, pregnant women should avoid contact with any form of tobacco products, including secondhand smoke.