High uterine arteries have to be improved by finding the cause of the increased resistance of the uterine arteries and then treating the symptoms according to the cause. One of the common causes of increased uterine artery blood flow resistance is due to insufficient blood supply in the uterus, because the blood supply will be ischemic and hypoxic, which will cause the blood flow to accelerate, resulting in high resistance. In this case, it is recommended that pregnant women can take oxygen appropriately, and if they are anemic they can be treated with blood supplementation or blood transfusion. In addition, if the pregnant woman suffers from hypertensive disorders of pregnancy, the uterine artery blood flow resistance will also be high in the case of high blood pressure, in this case should actively treat hypertensive disorders of pregnancy.