如果您制定好了怀孕计划,别忘了提前补充叶酸。叶酸是一种维生素,也是胎儿神经发育的关键营养素。孕妇若缺乏叶酸,可能增加新生儿神经管缺陷的风险(如导致无脑儿、脊柱裂等)。神经管是胎儿中枢神经的前身,随着怀孕天数的增加会逐渐形成大脑和脊髓。由于神经管的正常闭合发生在怀孕的初期,因此一般建议怀孕前 If you have a good pregnancy plan, do not forget to pre-add folic acid. Folic acid is a vitamin that is also a key nutrient for fetal neurodevelopment. If pregnant women lack of folic acid, may increase the risk of neonatal neural tube defects (such as lead to no brain, spina bifida, etc.). Neural tube is the forerunner of fetal central nervous system, with the increase of pregnancy days will gradually form the brain and spinal cord. As the normal closure of neural tube occurs in the early stages of pregnancy, it is generally recommended before pregnancy