Fetal movement like trembling, if this is usually the case and the movement is regular, there is usually no problem, if it is a sudden change in fetal movement, you need to consult a doctor in time to check and observe whether the fetus has a lack of oxygen. Fetal movement includes all the activities of the fetus in the uterus, and is a sign that the fetus has signs of life. There are individual differences in the fetal movements perceived by pregnant women, and there may also be trembling-like fetal movements. If the fetus has always shown this kind of movement, the pregnant woman does not need to worry too much, but if it is a sudden change and there are abnormalities such as a decrease in fetal movement, it is not normal. If there is a change in fetal movement, pregnant women need to go to the obstetrics and gynecology department of the hospital as soon as possible, and cooperate with the doctor to do fetal heart rate monitoring and other aspects of the examination, to confirm whether the fetus is hypoxia and other conditions.