Do men smoke and drink to have children?

Men smoking, drinking has a certain impact on pregnancy. If men smoke, it will affect the quality of male sperm, because cigarettes contain nicotine, harmful to the human body. But if occasionally smoked, the impact on sperm is relatively small. If long-term smoking, may lead to the production of asthenospermia or abnormal sperm incidence is relatively high, so it is easy to lead to fetal malformation. Alcohol is an alcoholic ingredient, which can also affect sperm development, resulting in decreased sperm quality, reduced sperm activity, increased sperm abnormality content, and also affects pregnancy, resulting in a reduced chance of pregnancy and a high risk of fetal teratogenicity. Therefore, if you want to prepare for pregnancy, boys who often drink and smoke need to quit smoking and alcohol three months to six months in advance.