If the fetus has intrauterine growth retardation, after treatment, the fetus begins to grow again, the height of the uterus begins to grow again with the gestational week, the amniotic fluid slowly increases, the pregnant woman feels more fetal movement, and the fetal heart monitoring is normal, which is an effective treatment for intrauterine growth retardation, and the pregnancy should not be terminated. The pregnancy can be continued. In some cases, the pregnancy should be terminated, for example, if there is no improvement after treatment, if the fetal heart monitoring does not respond every week, if the oxytocin and provocation tests do not respond, and if the biophysical score of the newborn is always 4-6. If the fetus is mature, terminate the pregnancy at this time, if not, give the drug dexamethasone to promote fetal maturation and terminate the pregnancy; 2. During treatment, it is found that the fetal amniotic fluid volume is getting smaller and smaller, the fetus stops growing for more than 3 weeks, and the pregnant woman feels a significant decrease in fetal movement, and at the same time, the fetal hemogram appears abnormal at this time, such as a significantly higher SD ratio, or the blood flow at the end of diastole disappears or slow flow, or The fetus should be in intrauterine hypoxia. Regardless of whether the fetus is mature or not, the pregnancy should be terminated; 3. If FGR is a complication of pregnancy, the comorbidities and complications throughout the treatment are getting heavier and heavier, the pregnancy should also be terminated for the safety of mother and baby; 4. If the fetus is mature, there is no need to promote fetal lung maturation, and if it is not mature, dexamethasone should be given to promote fetal lung maturation and terminate the pregnancy. Therefore, intrauterine growth retardation depends on whether the fetus has improved after treatment, and if it has not, the pregnancy should be terminated.