If a pregnant woman smokes cigarettes, if she smokes very few cigarettes, then the baby is usually not deformed; however, if she smokes too many cigarettes, then there is a possibility that the fetus will be deformed. If a pregnant woman smokes only a few cigarettes after pregnancy, one or two cigarettes, then generally will not cause malformation of the baby, the pregnant woman can keep abreast of the situation of the fetus through the regular obstetric examination in order to detect the abnormalities of the fetus in a timely manner. If a pregnant woman smokes a lot of cigarettes after pregnancy, then there is a certain possibility of causing fetal malformations. The harmful components of tobacco, such as carbon monoxide and nicotine, may be transported to the fetus through the placenta, thus causing fetal malformations. If a pregnant woman smokes after pregnancy, don’t be too anxious, relax, pay attention to the condition of the fetus in the womb at any time, and have regular checkups, and if there is any abnormality, consult a doctor in time.