“接下来我讲一讲妊娠早期避免各种致畸因素的重要问题。”医学博士又说话了。“月经规则的新娘一旦月经没有按时来就应考虑到妊娠的可能。此时一方面要及时请医生检查并确诊,另一方面如确已怀孕就必须防范以下致畸因素:①可引起畸形或脑神经损害的激素、磺胺及链霉素等应不用或少用;⑨可影响胚胎发育的X光等放射线或各种毒物 “Next, I’ll talk about the important issue of avoiding various teratogenic factors in early pregnancy,” the MD spoke again. "Menstrual rules of the bride once menstruation did not come on time should take into account the possibility of pregnancy .At this time on the one hand to the doctor to promptly check and diagnose, on the other hand, if indeed pregnant, you must prevent the following teratogenic factors: ① can cause deformity or Brain damage neurons, sulfa and streptomycin, etc. should be no or less; ⑨ X-rays and other toxic substances that can affect embryonic development