A comprehensive study analyzed 173, 687 non-hereditary birth defects with over 11.5 million controls from 1959 to 2010 in relationship to smoking found smoking substantially increases the risk birth defects such as cleft palate, misshaped skulls, clubfoot, cardiovascular/heart defects, musculoskeletal defects, missing and deformed limbs, missing/extra digits, facial defects, eye defects, gastrointestinal defects, hernia, and undescended testes.
PositiveTip: Smoking is detrimental to the mother, the unborn child and anyone within breathing distance to the smoke–even your pets.