There are benefits to taking folic acid after pregnancy. It is generally recommended to take folic acid from 3 months before conception until 3 months after conception, a period of about half a year. The purpose of taking folic acid after pregnancy is to replenish the amount of folic acid in the pregnant woman’s body to avoid neural tube abnormalities in the fetus. After the third month of pregnancy, it is recommended to stop taking folic acid and to take multivitamins containing folic acid if possible. Pregnant women need an increased amount of various nutrients after pregnancy, and the amount supplied by diet alone is insufficient, especially in early pregnancy. If folic acid is deficient, it may cause preterm miscarriage and preterm labor. Folic acid deficiency is also prone to fetal developmental malformations, such as spina bifida and cerebrospinal bulge, so it is beneficial to take folic acid in pregnancy.