Birth defects: Each year, approximately 3 babies out of 100 in the United
States are born with major birth defects. Women who smoke during
pregnancy are more likely to deliver babies with cleft lip and/or cleft
palate, where the lip or the roof of the mouth fails to form correctly.
Babies born with cleft lip or cleft palate have problems with feeding,
hearing, and speech development; dental problems, including missing
teeth; and middle ear infections. Correction of cleft defects requires surgery