Folic acid usually refers to folic acid tablets, and there is no mandatory requirement for boys to take folic acid tablets to prepare for pregnancy. If a boy’s body lacks folic acid, he can take a moderate amount of it, if not, no need to take extra. Folic acid tablets are mainly used as a preventive medicine for women preparing for pregnancy to prevent fetal neural tube malformation, and there are fewer adverse reactions to taking this product. There is no rule that boys can’t take folic acid, if there is a lack of folic acid in their body, they can take folic acid. It is recommended that folic acid be taken under the guidance of a doctor. Boys can also prepare for pregnancy through pre-pregnancy examination, moderate exercise, quit smoking and alcohol. During the preparation period, both men and women should pay attention to maintain good living habits, regular work and rest, avoid staying up late, maintain a positive mindset, and prohibit smoking and alcohol.