A fetus with a high sd value does not necessarily have cerebral palsy. It is necessary to clarify the specific cause of the increased sd value to make a judgment, although a high sd value may indicate that there is fetal hypoxia, but it does not mean that it will cause cerebral palsy 100% of the time. Usually, the normal range of sd value is 2.5 to 4 during 30 to 36 weeks of pregnancy, and usually it will not exceed 4; while during 36 to 40 weeks of pregnancy, the normal range of sd value is 1.7 to 3, and it will not exceed 3, because sd value represents umbilical blood flow, and usually the dynamic changes of sd value can be observed to determine the development of the placenta and the safety of the fetus, if If the sd value is greater than 3 in the late pregnancy – 37 weeks, and it continues to be greater than 3, and it does not improve after oxygenation, then it is often considered that the fetus is in intrauterine distress due to lack of oxygen in the uterus, and if the pregnancy is not terminated by cesarean section in time, it may lead to fetal cerebral palsy due to prolonged lack of oxygen. However, it may also be caused by the umbilical cord or other factors such as ultrasound, so then you need to do fetal heart monitoring and oxytocin provocation test, and you need to count fetal movements regularly every day, and you should also try to sleep in the left side position, and if you do have hypoxia, you should consider administering oxygen. If a woman has a high sd value in late pregnancy, she should be given oxygen as soon as possible and then reviewed, and she should also have fetal heart monitoring and oxytocin provocation test, and if necessary, she should have a cesarean section to terminate the pregnancy.