What happens when pregnant women smoke?

When a pregnant woman smokes, the trace amounts of CO that she inhales means less oxygen will be delivered to her baby.

The nicotine and other compounds found in tobacco pose both an immediate and an extended threat to the health of her developing child.

These dangers include:
Increased risk of miscarriage
Increased risk of Sudden Infant Death Syndrome (SIDS)
Premature birth
Low birth weight
Behavioral problems (hyperactivity)
Reduced verbal and mathematical ability

Smoking while pregnant will:
  • Lower the amount of oxygen available to you and your growing baby.
  • Increase your baby's heart rate.
  • Increase the chances of miscarriage and stillbirth.
  • Increase the risk that your baby is born prematurely and/or born with low birth weight.
  • Increase your baby's risk of developing respiratory (lung) problems such as asthma.
  • Increase the chance of your baby having heart defects.
  • Increase the chance of your baby having learning disorders, behavioral problems, and relatively low IQs.