The decrease in fetal movement at 34 weeks of pregnancy may be due to the fetal sleep cycle or fetal intrauterine hypoxia in late pregnancy. It is recommended that pregnant women go to the obstetrics department or emergency room of the hospital in time to identify the cause and treat the cause. Common causes: 1, fetal sleep cycle: late pregnancy fetus has formed a circadian rhythm in the maternal uterine cavity, sleep time compared to the previous increase in activity time will be reduced, so pregnant women will feel a decrease in fetal movement at 34 weeks; 2, fetal intrauterine hypoxia: late pregnancy due to the larger size of the fetus, may occupy most of the space of the maternal uterus, amniotic fluid is relatively reduced, there may be pressure on the umbilical cord The fetal movement may be reduced due to the fetal size and the relative decrease of amniotic fluid. At the same time, if there is a decline in the function of the placenta, the supply of oxygen and nutrients to the fetus decreases, which may cause fetal hypoxia. The fetus is not only a fetus, but also a fetus, and the fetus is not a fetus. If the fetus is not normal, you should also be alert to fetal hypoxia; 2. Fetal movement decreases by more than 50%: If the fetal movement decreases significantly by more than 50%, you must consult a doctor in time, don’t wait until the fetal movement disappears and then go to the hospital. If necessary, improve the fetal condition in the uterine cavity through oxygen absorption and left-sided position, if the phenomenon of intrauterine hypoxia is not improved, emergency cesarean section is needed. Third, life care: in the middle and late pregnancy should pay attention to rest, adjust their physical state and psychological state, so as to be ready to deal with early delivery, but also need to pay attention to diet, avoid cold, greasy food, to ensure smooth bowel movement.