If a pregnant woman feels a significant decrease in fetal movement, generally suggests that the fetus lacks oxygen, this time you need to consult a doctor in time for relevant examinations. Generally in pregnancy fetal movement is very important to reflect the normal fetal indicators, generally 1h fetal movement in more than 3 times is normal, if pregnant women feel fetal movement significantly reduced or weakened, it may suggest that the fetus intrauterine hypoxia, at this time you need to consult a doctor in a timely manner. In addition, when the fetus just began to lack of oxygen, usually the fetal movement is first manifested as frequent, and then reduce, if the fetal movement is frequent, also need to pay attention to. Generally, fetal hypoxia requires timely ultrasound examination to determine whether there is a decrease in amniotic fluid and umbilical cord abnormality, and at the same time, fetal heart rate monitoring examination, etc., if necessary, timely termination of pregnancy. Pregnant women should pay attention to the monitoring of fetal movement, regular obstetric examination, if there is any abnormality, should consult a doctor in time.