It is recommended to abstain from alcohol for at least three months before having children. Alcohol has a very negative impact on the quality of sperm and eggs as well as on normal embryonic development. Under normal circumstances, the sperm quality renewal period is about three months. In order to improve the quality of sperm and avoid the effects of alcohol on sperm development, it is necessary to abstain from alcohol for at least three months to completely renew the sperm in the body so as not to reduce the sperm vitality due to alcohol and affect normal conception. Relatively few women drink alcohol. If women drink alcohol regularly, the adverse effects on eugenics are far more harmful than if men drink alcohol. If the eggs are of poor quality, this can affect the normal differentiation of embryonic cells and may lead to miscarriage or neurological malformations in the fetus. It is advisable to take folic acid while abstaining from alcohol to improve the quality of sperm and eggs.