Harm of Secondhand Smoke Exposure to Pregnant Women

The hazards of secondhand smoke exposure during pregnancy must not be overlooked. Secondhand smoke contains numerous harmful substances—including nicotine, tar, and carbon monoxide—that adversely affect the pregnant woman’s respiratory and cardiovascular systems. Prolonged exposure to secondhand smoke may cause respiratory symptoms such as coughing and wheezing in pregnant women and increase their risk of developing pregnancy-induced hypertension, heart disease, and other complications. Moreover, these toxic substances can cross the placenta and impair fetal growth and development, potentially leading to severe outcomes such as congenital malformations or preterm birth. To safeguard maternal and infant health, pregnant women and those around them should avoid tobacco entirely and work together to create a smoke-free environment.