Can contractions cause fetal hypoxia?

Each contraction reduces the supply of nutrients and oxygen from the placenta to the fetus through the umbilical cord. After labor, contractions are usually four to five minutes in frequency and last 40 to 50 seconds. This frequency is tolerated by the fetus and generally does not show fetal hypoxia. If the contractions are shorter, the contractions last longer, or the fetus has umbilical cord around the neck, amniotic fluid meconium staining, sail-shaped or racket-shaped placenta, or the pregnant woman herself has pregnancy hypertension, diabetes and other manifestations, even if it is normal regular contractions, the fetus may also show hypoxia, so the fetal heart changes will be monitored after labor, once found problems, will be dealt with in time. If persistent uterine contractions are too strong, it may also easily cause fetal hypoxia. Fetal heart monitoring is required during labor until delivery. If abnormal fetal heart rate is found, it needs to be corrected actively. If medication cannot alleviate it, after the fetal head reaches 3 cm below the spine, it may require perineal lateral incision, fetal suction, and forceps to deliver the fetus as soon as possible. If the fetal head position is relatively high, cesarean section may be required.