Answer:
One known health consequence of smoking tobacco during pregnancy is premature birth. Smoking during pregnancy increases the risk of having a preterm or low birth weight baby, as well as other long-term health problems such as asthma, unusual development, and mental disabilities. Smoking is also associated with a higher risk of certain complications during labor, such as placenta previa and placental abruption, as well as an increased risk of blood clots in the mother.