Fetal hiccups are a relatively common physiological phenomenon in the womb, and are usually not considered fetal movements. Fetal movement refers to the activity of the fetus’ limbs, which can be felt by the pregnant woman when the fetus stretches, flexes its limbs, kicks and rolls, and touches the uterus. Hiccups are caused by the fetus swallowing amniotic fluid inside the mother’s body and exercising the breathing function of the lungs. Hiccups have no adverse effects on the fetus, so there is no need to be overly concerned. The fetus hiccups will move regularly in the mother’s abdomen, once every 2-3 seconds for 2-5 minutes, sometimes for 10-20 minutes, and when touched with the hand, they are bouncing, unlike fetal movements. Pregnant women usually start to self-monitor fetal movement at 28 weeks of gestation, according to the pattern of daily fetal movement and fetal waking and sleeping cycle, domestic mostly use daily fixed 3 hours counting fetal movement method, that is, measuring fetal movement for 1 hour at fixed time in the morning, noon and evening, adding up the number of fetal movement and multiplying by 4 to get the number of fetal movement for 12 hours, fetal movement > 30 times is normal. If the fetal movement is too frequent or decreases, the pregnant woman needs to pay attention to it, and if necessary, she needs to go to the hospital for electronic fetal heart monitoring to find out whether the fetus has hypoxia.