The purpose of taking folic acid after pregnancy is mainly to prevent fetal neural tube malformations, such as preventing fetal spina bifida or anencephaly, it is very important to take folic acid. It is best to take Slimane folic acid tablets which are cheap and effective, and take one tablet once a day. It is best to start taking it orally in the first trimester of pregnancy and continue to take it until the third trimester, which can effectively prevent fetal neural tube malformation. It is also recommended that after pregnancy, in addition to taking folic acid tablets and regular obstetrical examination, you should also strengthen nutrition, more protein, more vitamins, and also eat some foods that replenish blood. You can also eat more sea fish, which is good for fetal brain development. It is also recommended to eat more fresh fruits and vegetables during pregnancy to fully replenish vitamins and achieve the purpose of eugenics.