When a pregnant woman is hypertensive, intermittent blood flow in the umbilical artery indicates a problem with the blood supply to the fetus, which is more dangerous.
The blood flow in the umbilical artery reflects the vascular resistance of the fetus. If the blood flow in the umbilical artery is fast, it means that the vascular resistance of the fetus is small; if the blood flow in the umbilical artery is slow, it means that the vascular resistance of the fetus is large.
Under normal circumstances, with the increase of gestational weeks, the umbilical artery blood flow is smooth and slow change. If the umbilical artery blood flow is intermittent, it means that there is obvious abnormality in the fetus, and the fetus may suffer from intrauterine ischemia and hypoxia, or even death.
Hypertension in pregnant women can easily cause intrauterine fetal death. When the umbilical artery blood flow is fast and slow, it is recommended that the pregnant woman actively seek medical treatment to prevent adverse effects on the fetus and her own body. When the umbilical artery blood flow is abnormal, it is necessary to seek the help of a doctor to take the next step of intervention, and if necessary, terminate the pregnancy.