Can both men and women often smoke and drink before pregnancy affect the fetus?

Generally speaking, both men and women should give up smoking completely three to six months before pregnancy, that is to say, if conditions permit, it is recommended that both husband and wife stay away from cigarettes six months in advance. In addition to quitting smoking, you need to quit nicotine-related products, including patches or chewing gum. Women who smoke can cause abnormal menstruation and affect ovulation, which may lead to infertility. Smoking is also a serious hazard to the next generation and mothers, which can easily lead to respiratory problems and cervical cancer. It will not only lead to fetal malformation, but also cause placental dysfunction, pregnancy-induced hypertension or other complications, thus endangering the lives of mother and fetus. It can be seen that smoking has an impact on pregnancy from the beginning. Even if pregnant, it will do great harm to mother and child, so women had better give up smoking. Smoking has a certain effect on ovarian function, which is easy to cause fetal malformation, abortion or premature delivery. Smoking will increase the concentration of carbon monoxide in the blood of mother and fetus. Carbon monoxide replaces oxygen in red blood cells, which will damage the central nervous system of the fetus and lead to slow development. Eating more vegetables and exercising properly are good for your baby's health. Stay away from crowded places and reduce the harm of second-hand smoke. If you really want to smoke and eat melon seeds, don't leave your mouth idle, and have a scientific diet to divert your attention, such as playing games properly. Smoking during pregnancy generally leads to miscarriage and fetal malformation, which is four times that of normal non-smoking, so various tests are needed to rule out fetal malformation. Toxic substances can penetrate into the blood and placenta, directly affecting the fetus, which may lead to congenital malformation, abortion, premature rupture of membranes and so on. Therefore, it is recommended to go to the hospital to check whether the fetus is normal. Therefore, it is suggested that you must give up smoking and alcohol before pregnancy, which is also for the sake of better babies in the future. In fact, even if it's not for pregnancy, it's best to give up smoking. After all, smoking will have a bad influence on yourself and the people around you, and even smokers are more likely to get lung cancer or other diseases.