Why is it dangerous to smoke during pregnancy?

Yes: Smoking during pregnancy has been related to multiple complications such as lower infant weights and premature aging of the placenta there are multiple other complications that compromises the new born also. Of interest, women that smoke undergo menopause 1-2 years sooner.

Here's a start...: Well, you already know it's dangerous to smoke anytime - male or female, pregnant or not. Risks of smoking specific to pregnancy include statistically important increase in chance of fetal death, fetal growth retardation, placental abruption (can involved hemorrhage), hypertension and pre-eclampsia in the mother - and there are many more.

Health/ Death risks: According to the centers for disease control & prevention- research shows that smoking during pregnancy is linked to premature births, babies with low birth weights & stillbirths, as well as sudden infant death syndrome. The mother’s health can also be compromised. See: http://www.Cdc.Gov/tobacco/basic_information/health_effects/pregnancy/.